She is in active addiction, and while she may have other personality disorders, she'll never know until she chooses to quit drinking for good. And neither will you.
The best you can do right now is protect yourself and the kids from the consequences of her behavior. Her addiction is more powerful than her need to get better right now. I'm sorry, this is a terrible position for your family to be in. But it doesn't matter at the moment why she is doing it--it matters only that she IS doing it, and that you and the kids need to be away from it one way or another.