I’m losing my mind with my loud, disgusting flat mate

Just for context, I’m diagnosed autistic so I’m a lot more sensitive to these things. I’m a first year student in halls and my flat consists of me, 19F, my boyfriend 19M, another guy who’s quiet and clean 18M and the problem flatmate 25M.
My flat mate next door to me is SO loud constantly. He has friends over every other night until 3-4am where they have the TV on full volume and shout and laugh all night. When he’s alone he has his TV on full volume ALL night and I can hear him laughing out loud every few minutes right up until like 7am. When he has classes he gets up around 6:30am and wakes the entire flat up by going in and out of his room and the kitchen slamming the doors every time. He talks so loudly on the phone for hours that you can still hear him two rooms down from his.
At the start of the year, he seemed nice and the first few times he was being too loud I just went and knocked on his door and politely asked him to turn it down. The next few times he didn’t even answer the door so I left him a note in the kitchen. Still to this day he is constantly loud all hours of the day and night even though he knows most of my lectures start at 9am. He also starts playing his guitar and singing at the top of his voice from 8am regularly. It’s gotten to the point now where if he’s being too loud and I can’t sleep or get woken up I just make a complaint to the accommodation who come and kick his friends out and tell him off.
Also, the kitchen. The kitchen is absolutely disgusting. It stinks to high heaven and makes the whole hallway stink. He never wipes the counters, leaves his dishes all over the place until the food in the bottom goes mouldy. He spills milk and coffee and sugar and sauces and whatever else all over the floor and counters and just leaves it there for literally weeks. There has been a butter knife caked in god knows what stuck to the counter for over a month now. In october I asked in the group chat for everyone to wipe the counters once they finished as I was having to clean the whole kitchen top to bottom by myself regularly. Of course nothing changed. I cleaned the kitchen before leaving for home over reading week and came back to a state so I went on strike. It got to 4 weeks after I came back and the kitchen was just getting worse so I sent a polite message saying how the kitchen was grim and we all needed to put in effort to keep it clean. Again nothing was done so I sent another message a few days later this time pointing out how it is a food safety issue to leave the counters unwiped for weeks after preparing raw meat etc on them and threatened to get the accommodation involved if it wasn’t sorted. This finally worked somewhat. He cleaned up but left parts of the kitchen still disgusting and left all the food out of his dishes to rot in the sink.
And to add to it all, my food has started going missing from my freezer drawer and fridge shelf.
So, I can’t sleep, can’t stay asleep, get woken up at the crack of dawn, get my food stolen, can’t concentrate on assignments or studying and can’t just have peace and quiet for a few hours and it’s driving me insane.
I already hate my uni and my course and have planned to transfer closer to home next year. I’m extremely depressed and haven’t left my room or been to class in over two weeks now - and he just makes everything 10x worse.
What do i do in this situation?

Assuming this is uni managed accommodation and not private, have you spoken to the uni's accommodation or residential team?
They'll be rules about noise after hours, so they'll be able to have a word with him.
As an aside, has anyone in the house/flat raised it with them directly? Do they know they're being an arse an have just carried on anyway?

Both me and my boyfriend have knocked on his door in the middle of the night and asked him to be quiet. We have also texted him a million times now explaining that we start class very early and have class every day, hence why we actually need to sleep at reasonable hours unlike him as he’s a third year who only has class on a friday. Usually when we tell him to shut up, he does. But only for that night.He’s back at it again the next day as if he has like completely forgotten our conversation less than 24hours before.Initially I just thought that he didn't realise how loud he was being, but after telling him upwards of 10times now I’m pretty certain he’s just the world’s biggest arsewipe.

Just for context, I’m diagnosed autistic so I’m a lot more sensitive to these things. I’m a first year student in halls and my flat consists of me, 19F, my boyfriend 19M, another guy who’s quiet and clean 18M and the problem flatmate 25M.
My flat mate next door to me is SO loud constantly. He has friends over every other night until 3-4am where they have the TV on full volume and shout and laugh all night. When he’s alone he has his TV on full volume ALL night and I can hear him laughing out loud every few minutes right up until like 7am. When he has classes he gets up around 6:30am and wakes the entire flat up by going in and out of his room and the kitchen slamming the doors every time. He talks so loudly on the phone for hours that you can still hear him two rooms down from his.
At the start of the year, he seemed nice and the first few times he was being too loud I just went and knocked on his door and politely asked him to turn it down. The next few times he didn’t even answer the door so I left him a note in the kitchen. Still to this day he is constantly loud all hours of the day and night even though he knows most of my lectures start at 9am. He also starts playing his guitar and singing at the top of his voice from 8am regularly. It’s gotten to the point now where if he’s being too loud and I can’t sleep or get woken up I just make a complaint to the accommodation who come and kick his friends out and tell him off.
Also, the kitchen. The kitchen is absolutely disgusting. It stinks to high heaven and makes the whole hallway stink. He never wipes the counters, leaves his dishes all over the place until the food in the bottom goes mouldy. He spills milk and coffee and sugar and sauces and whatever else all over the floor and counters and just leaves it there for literally weeks. There has been a butter knife caked in god knows what stuck to the counter for over a month now. In october I asked in the group chat for everyone to wipe the counters once they finished as I was having to clean the whole kitchen top to bottom by myself regularly. Of course nothing changed. I cleaned the kitchen before leaving for home over reading week and came back to a state so I went on strike. It got to 4 weeks after I came back and the kitchen was just getting worse so I sent a polite message saying how the kitchen was grim and we all needed to put in effort to keep it clean. Again nothing was done so I sent another message a few days later this time pointing out how it is a food safety issue to leave the counters unwiped for weeks after preparing raw meat etc on them and threatened to get the accommodation involved if it wasn’t sorted. This finally worked somewhat. He cleaned up but left parts of the kitchen still disgusting and left all the food out of his dishes to rot in the sink.
And to add to it all, my food has started going missing from my freezer drawer and fridge shelf.
So, I can’t sleep, can’t stay asleep, get woken up at the crack of dawn, get my food stolen, can’t concentrate on assignments or studying and can’t just have peace and quiet for a few hours and it’s driving me insane.
I already hate my uni and my course and have planned to transfer closer to home next year. I’m extremely depressed and haven’t left my room or been to class in over two weeks now - and he just makes everything 10x worse.
What do i do in this situation?

Just for context, I’m diagnosed autistic so I’m a lot more sensitive to these things. I’m a first year student in halls and my flat consists of me, 19F, my boyfriend 19M, another guy who’s quiet and clean 18M and the problem flatmate 25M.
My flat mate next door to me is SO loud constantly. He has friends over every other night until 3-4am where they have the TV on full volume and shout and laugh all night. When he’s alone he has his TV on full volume ALL night and I can hear him laughing out loud every few minutes right up until like 7am. When he has classes he gets up around 6:30am and wakes the entire flat up by going in and out of his room and the kitchen slamming the doors every time. He talks so loudly on the phone for hours that you can still hear him two rooms down from his.
At the start of the year, he seemed nice and the first few times he was being too loud I just went and knocked on his door and politely asked him to turn it down. The next few times he didn’t even answer the door so I left him a note in the kitchen. Still to this day he is constantly loud all hours of the day and night even though he knows most of my lectures start at 9am. He also starts playing his guitar and singing at the top of his voice from 8am regularly. It’s gotten to the point now where if he’s being too loud and I can’t sleep or get woken up I just make a complaint to the accommodation who come and kick his friends out and tell him off.
Also, the kitchen. The kitchen is absolutely disgusting. It stinks to high heaven and makes the whole hallway stink. He never wipes the counters, leaves his dishes all over the place until the food in the bottom goes mouldy. He spills milk and coffee and sugar and sauces and whatever else all over the floor and counters and just leaves it there for literally weeks. There has been a butter knife caked in god knows what stuck to the counter for over a month now. In october I asked in the group chat for everyone to wipe the counters once they finished as I was having to clean the whole kitchen top to bottom by myself regularly. Of course nothing changed. I cleaned the kitchen before leaving for home over reading week and came back to a state so I went on strike. It got to 4 weeks after I came back and the kitchen was just getting worse so I sent a polite message saying how the kitchen was grim and we all needed to put in effort to keep it clean. Again nothing was done so I sent another message a few days later this time pointing out how it is a food safety issue to leave the counters unwiped for weeks after preparing raw meat etc on them and threatened to get the accommodation involved if it wasn’t sorted. This finally worked somewhat. He cleaned up but left parts of the kitchen still disgusting and left all the food out of his dishes to rot in the sink.
And to add to it all, my food has started going missing from my freezer drawer and fridge shelf.
So, I can’t sleep, can’t stay asleep, get woken up at the crack of dawn, get my food stolen, can’t concentrate on assignments or studying and can’t just have peace and quiet for a few hours and it’s driving me insane.
I already hate my uni and my course and have planned to transfer closer to home next year. I’m extremely depressed and haven’t left my room or been to class in over two weeks now - and he just makes everything 10x worse.
What do i do in this situation?