Hmm... you know, this sounds like a sort of a logistical problem. Maybe if you could get some help; someone to help your mother in the mornings or maybe stay with her for a few hours during the day. There are adult day-cares that will pick up people and drop them off, for example. Home health care might help; an aide for a few hours a day could take a lot of pressure off you.

You say you're seeing a psychiatrist--that could be a start; you could ask about referrals to an agency or a social worker who might give you some information about how to get help caring for your mother. You have a problem: Too much work, not enough time. But the problem has a solution.