Welcome back Marie and it sounds like you have had quite the summer - argh.
I'm so sorry to hear about your daughter; that must be off the scale painful.
Watching someone succumb to alcohol is bad enough but watching a child fall into codependency seems even worse.
Unfortunately the best thing to do is stick to your side of the street. I don't know if you did the Alanon road but it might be a good time to revisit this.
Pray hard and let us know how things go.