I have social anxiety and depression, but I weirdly thrive in college. I haven't been to uni yet, I'm in a community college right now so maybe the tiny size of it helps. Though I will say, I've dealt with some stress surrounding school, it's always been better than a job to me, and I haven't dealt with what you have.
Definitely try to look into therapy at your uni, my community college and future university both offer mental health services free of charge. Also, what is your course load like? Maybe you're doing too many courses at one time. I can do 5-6 courses a semester, but I have a friend who struggles with anything more than 3 or so and if I remember correctly, she's only taking 2 this semester, so course load could very well be an issue if it's too much for you.