From reading your post, I’d say extreme measures need to be taken. You need to change your environment completely. You need to get out of your parents house and find a job that you can do. Be homeless for the time being if you must, live in the streets if you have to.

I’m not sure what options you have considering your disability, but I’m sure there are at least some job prospects you can take it, doesn’t matter what at least you’ll be out of that place that’s creating some kind of negative feedback loop that you’re stuck in. I’m in the same place right now and I’m taking the steps to be completely independent so I can sort my shit out without people who think they know what’s best for me, just feeding into my depressive cycles.