When the booze... Ummm... buzz... (you choose) wears off she'd see what she lost vs. what she held onto. More often than not they come back when they grow up a little. Takes a while for the booze/buzz to wear off and those brain cells to regrow. In my experience it takes a few painful years.
I think I touched on the problems I had with my son in the past. He finally grew out of his stupidity and got himself a job, a house and a family, but not before he missed put on seeing his grandpa pass away... my dad, the one who cared for him while I worked full time, the one who helped raise him. Dad died of cancer in 2008 far too young at 76 and I miss him terribly to this day, but I was there along with my sister, to take care of him and see him through. My son has to live with not being there. Not being able to say goodbye because of stupidity and stupid behavior. It all comes down to choices and what you THINK you can live with.
Keep loving that kid no matter how much you want to shake the life out of her. Let her know, so she knows.