Glad I could help a little bit.
If you are a caregiver for your mother, maybe there are additional monthly payments you can request from the state or social security?
Alternatively, perhaps it would be better for you, if you'll get a professional caregiver, who will be paid by social security, and you can get a job? I don't know the rules in your country, but almost always there are more options than most people know. There should also be some support hotline from the state which can help or at least consult for your options?
You could also look out for some local self-help groups that have similar problems and can give you some emotional support. I know those situations can be very hard, and I tend to try to solve everything for myself, but sometimes other people can give you a different perspective.
If I were you, I would get your finances in order and get some every daytime structure in your life. Your decisions don't have to be perfect every day. Just try to get more things right than wrong. In the long time, you'll get out of it eventually. And you'll get more options.