What a sad situation. I'm sorry you and your daughter are going through this. But, honestly, you cannot help her if you cannot even help yourself. Reaching for the bottle is the worst thing you could do. You certainly can't drive to her after you've been drinking.
I'm not sure what advice I have, other than to get your own situation straightened out. They say one must put on their own oxygen mask before they can help anyone else.
If your daughter needs help, I'm sure there are places where she is that she can contact. There comes a point where we just can't save our kids, they have to want to save themselves. I've been there, so I know what I'm talking about. l know it doesn't make the hurt go away, but it's the honest truth.