Drop out and totally change course in second year?

So I’m having a crisis and everyone I could talk to is asleep and this is really a desperate search for some advice. It’s gonna get long so I won’t mind if no one replies, I just sort of want to vent and y’all need context. (There is a tldr though if you wanna skip my rambling)

I’m currently at Queen’s University Belfast and I’m in my second year of studying Sociology and Social Policy. I’m gonna be honest with y’all, I chose this course because the entry requirements was BBB instead of the usual ABB, which I knew I wouldn’t be able to get. Getting in to queens is a big thing and my school really pushed it on all of us. I desperately wanted to go to queens with my best friend. And then results day came and I got the BBB I needed but my friend (who experienced some extremely difficult family and mental health circumstances during our A levels) did not get the grades.
So there I was, now registered on a course that I only chose so I could get into what I have been told is a very respected university that would mean I could have all sorts of opportunities. And none of my friends were going there. I can’t really describe to y’all how utterly lonely I was during my first year. I was put in a flat in halls with five other mostly “mature” students who were studying medicine and other fancy courses. I had such awful anxiety that I could barely go into the kitchen because I was a) terrified of social interaction and b) you guys, I lived with three boys and that kitchen was in such a state I was literally sweating from anxiety every time I went in there, I just couldn’t make myself any food there. I did sign up for a couple of societies at the freshers fair but I only went to one LGBT meeting and got a bit overwhelmed by everyone there and left 20 minutes early and didn’t go to any other society meetings. I’m not a very social person and I don’t drink or go out to clubs so I didn’t really meet anyone new. And I would say the majority of people on my course in first year were “mature” students who were also studying social work. So I didn’t really fit in there either. To this day I have exactly two people on my course that I can sort of talk to, one is only in one of my modules and the other got pregnant this year so she won’t be back for my final year. I still talk to my best friend on a daily basis but everyone else in my old group of friends sort of drifted apart. I really miss them.
But here’s the thing. I am a massive nerd. While I was still in school I discovered the wonders of comic conventions and the even more wonderful concept of: cosplay. I LOVE cosplay. I absolutely love designing and making my own costumes based on the characters and worlds that I adore (looking at you Critical Role). I go to most of the cons in Northern Ireland (of which there are like.... three) and the bigger ones down south and I’ve gone to MCM London twice now and I’ll be back in May! I’ve met so many people through it and it’s such an amazing little community. I even have a cosplay Instagram, which I will not give out here, where I have around 650 followers. In my first year at uni I kind of started taking my hobby really seriously. The cast of Critical Role (aka my heroes) announced they would be at MCM London that October and me and my best friend went into OVERDRIVE to get costumes together. If anyone reading this is familiar with the show, which I highly doubt, you’ll know what I mean when I say that Keyleth was an... interesting costume to make. I spent a week and a half handsewing individual leaves onto a cape pattern. I spent days constructing antlers out of pipe cleaners and tinfoil and paper mache for a headpiece. And I had the best time. I felt so relaxed. After the con, where I got lots of compliments on my costumes, I decided this was something I really loved. I started learning to embroider for other costumes and I hand sewed a leather bodice for a Vexahlia cosplay, breaking so many needles in the process. Now, I have a dressmakers dummy in my room at home and a sewing machine at last.
But here’s the thing. While I was designing and making my cosplays I came to the realisation that my hobby is something that I am a thousand times more passionate about than sociology. This is something I can really see myself doing as a potential career and it’s something I would absolutely love to do. Obviously I can’t make cosplays as a job but there is the next best thing: costume construction. I adore costume design and since I started cosplaying I notice it a lot more in theatre shows or films/tv. I find myself spotting lace front wigs more often (y’all I love the Witcher but there’s some shots where Geralt’s wig is not glued right) and while watching period dramas I try to imagine just what goes into them. This is something that I really honestly love and I’m genuinely interested in pursuing it. And tonight I discovered the perfect course- costume production at Rose Bruford College in London. I’m not even exaggerating, I cried while reading the module contents and absolutely sobbed when I saw the entry requirements were something I can actually fit in to. It’s just the portfolio that I would need to do and that’s something I have been thinking of working on anyway. The other issue is that it’s in London but I think I can figure that out. This is my dream course. I would do anything to get there.
So here I am. In my second year in a degree that is kinda interesting but not what I can see myself doing. My lecturers are talking about jobs and dissertations and I’m having panic attacks in the back of the lecture hall because I don’t want to do that. I’m genuinely considering dropping out of university. This isn’t even the first time I’ve seriously considered this. This course is draining me. There’s some mornings where I physically can’t bring myself to get out of bed because I’m too anxious about what’s going to happen in my lectures today. I’m lonely. I feel like I was pushed during my A levels to apply for this university because it was a good one. I really wish I had taken a gap year to figure myself out. But I’ve read that if you drop out of university in second year and then reapply to a different course then you might not be able to get a tuition loan and I definitely can’t afford to pay the fees and I certainly don’t want to ask my mum and dad. I don’t really know what to do, other than invent a time machine and stop myself from ever considering sociology and social policy as a degree.

Tl;dr, I’m studying sociology and social policy at qub (a good uni) but I hate it and I’m far more interested in and passionate about costume design. Should I drop out of second year and work on a portfolio in order to apply to my dream course? Or keep working towards a degree that could possibly guarantee me a job? Pls help.