I'm just sick for you. Not comparing, but I have a brilliant, gorgeous son who is addicted to booze in a bad way, but right now is doing well, so I know the fucked up cycle of allowing yourself to dare to hope, only to be brought crashing down. Addiction sucks.
You may not like what I'm about to say, and I hope you don't block me for it because I say this out of genuine concern. The "feel sorry for me, mom" concerns me. You can't fix her mess. Youcan't sure her disease. There comes a point when you have to save the only person you can, yourself. My son and I didn't speak for 7 years because I was drowning in his disease. And while I was drowning, nothing was gettting better for him. It sucks so much because as a parent, we want to make it all better for our kids, we want to kiss the boo-boo and fix it. We can't. You can't. I can't. It sucks to be in this position, I know. But, please, do the one thing you can, take care of yourself.