I honestly understand., Unfortunately my loud flatmate lives just next door to me, he plays his loud music with his mates until around 4 in the morning and it's so loud that even my earplugs dont block the sound + the sound actually vibrates through my walls and desk etc. It has actually left me sleep deprived. I have called security many times(this occurs around 4-5 times a week) and he does not even bother to listen to them, or if he does he will turn it down for 5 minutes then turn it up again. I understand that it's 'the uni life' but honestly whats the point of having a bed in my room if it's too loud to even sleep? So my advice is to contact a possible residence tutor/accomodation office and keep a noise diary as evidence possibly with some voice recordings too. Unfortunately we were all allocated randomly to our flats, and I'm a quiet person who works early shifts as well as studying.