It's good that you're making it to classes - that you ARE doing the work, or at least trying to. I know it doesnt seem like it but that's huge right there
keep trying
I hope you can work it out with your T, I know it's... hard ... but you can do it I think
Maybe you could try interacting with someone? So you don't feel quite as alone during the day? You're a really nice person, maybe finding someone to study with ?