I hope your momma gets better, hon'.
I'm going through something similar myself right now. My relationship with my mom has been mostly unpleasant &... complicated, to say the least. But now she's dying, & trying to make amends, & it feels just... awful. On pretty much every level.
Mine has a zero percent chance of making it, the doctors say she has a "good" year left, if she makes it past that the quality of her life at that time is going to be... very, very bad.
What's your momma's prognosis?