Im so sorry to hear that your daughter's condition hasnt been improving. I'll pray for you both.
I know personally if I told my Mom I "wasnt sure" if I wanted to get better, that would really mean yes, I want to get better. Also, you say that life is draining for you having to live with her. It sounds like a tough situation for you both.
I cant tell you to have her committed or not, but you might want to really consider it since nothing else has worked.
Your daughter and I have a lot in common, feel free to PM me anytime if you need to talk.