No, your real problem is that your brain is a massive troll and you need to stop feeding that troll.

Easier said then done, yes. Reading your story, I at first thought: oh, clearly time to move out. Then, oh, clearly time to get a job. Oh, wait, no, you need to continue your education. And get some counselling.

And now I think that any of those could be good. I’m glad you’re seeing a psychiatrist, because what’s holding you back is nothing but your ways of thinking. You could do any of these things if you stopped allowing your thoughts to talk you out of them.

I think Cognitive Behavioural Therapy might be able to help you reorder your brain so you have more useful thoughts (you can learn the principles from books but in person therapy is more effective). You could also look into Mindfulness, especially the “stress reduction” type courses that you can get in a lot of places, including online. It’s meditation based, but it’s really down to earth and it’s actually all about how you relate to your own thoughts and the stuff in your head.

Work on your mental attitude, and then it will become possible to get a job. And I agree I think it would be good for you. Better than sitting in your room anyway. Going out somewhere and meeting other people is also something I would recommend.