Welcome,
Many drink all their life, case in point, my mother, going on 82 and still drinking,has been drinking for 62 years. Starts at about 9 am and goes until she passes out. Day in, day out. She will never recover from the disease, as she does not want to. Has never seeked recovery, or, even stopped for a day.
Have to agree with the others, there is nothing you can do.
I had to focus on me, my sanity, my well being, not hers.
When I am with her, I drive, period end of conversation, this she knows, so she does not fight me. If she is drunk and calls me, I say "Drunk Talking" and hang up, period end of conversation, this she knows, and does not call back until she is sober, I don't hear from her too much as there are not many sober moments. If I am with her, and she gets nasty, I leave, just walk out the door, no goodbyes, no nothing, this she knows.
What I am saying is, set your bounderies, what are you willing to accept and what are you not willing to accept...and, most important, stick to them.
A wishy washy attitude towards bounderies, makes everything worse, not better.
Keep posting, we are here for you.