@jakedduck1 .your situation sounds tough! And sad because it’s your mother. It’s so difficult when the child becomes the parent. It sounds like your mother is very afraid; afraid of another fall, afraid of losing her independence, afraid of what you’ll think of her, afraid of dying. You might take her to the GP who know her and maybe ask for a referral to a gerontologist. They specialize in the aging process and caring for elderly patients. He/she will better understand what has happened and how the fall has affected your mom.
I agree with @gingerw about having someone else come in so you can get some sleep. That’s so important! You want to keep your humorous personality, we like it!