You are my age, you've been with her a lot longer than I've been with AW, but you are new to alcoholism. It is progressive and will get worse. She'll die or she'll find recovery, but she will not find recovery at all if she continues to have a place to sleep and eat with no consequences for her drinking. In my opinion, and my opinion only, the only chance she has is for you to raise her bottom and kick her out of the house and stop supporting her, stop helping her have the resources to buy liquor, and stop cleaning up her messes. If you can't, then you have to move. If you can't do either, then put on your seatbelt my friend, and hope you survive the crash (or not).
Sorry to be so blunt.
Cyranoak