Hi. I'm just another internet rando but I've been where you are and slowly crawled back out. When your health is suddenly taken from you it's so overwhelming, and just getting through each day is a lot to handle. You need to focus on your mental and physical health like it's your full-time job right now. Taking care of someone else is definitely too much to ask of you. I'm glad you're doing your best to get different housing because it seems sorely needed.
Have you talked with the social worker or therapist aboutyour suidical thoughts? If not, I would definitely advise you to do that as soon as you can, and definitely check out the pinned resources in our community for anything that might work for you.
If you're lonely and would like to work on that, you can increase your contact with people online to help you pass the time. Try to find whatever little things that bring you joy (books, naps, hobbies you can tolerate right now) and maybe try a podcast you find relaxing. There are good days ahead of you. It may not feel like it, but not every day will feel this bad. Your brain and body are in a tailspin right now and you will find your way.
I'm sorry I don't have any magic advice to help your situation--I think if you could move a lot would change for you, but I wanted you to know that this stranger on the internet cares about you. You can come back to this community any time to vent. That's what we're here for.