Sorry you're experience with Alanon was not one that you valued.
I know you say you're not looking for answers, but i'm wondering if you might consider a suggestion for your daughter.
There are groups of Alateen, for kids to talk about how they feel about an alcoholic parent. There are even online group available.
Obviously your daughter will not be made to feel guilty for choosing to handle the situation as you have, as that was not her position in the family.
She may get a lot out of knowing other kids that are going through the same thing that she is, especially since it is likely that she will lose her dad at home to end stage alcoholism.
It is a fact that children of alcoholics are more likely to become alcoholic themselves, or marry into addiction. I think that your attention at this point should be to nudge your daughter (without the benefit of your personal experience) into a situation where she feels she can talk about how this has affected her. In a place where she can be honest, and not have to worry about how her words, and feelings are going to affect you.
I would definitely suggest that you set up an appointment with a good Child Psychologist.
The fact is, that your child and her last few years at home should be your main concern. I appreciate that you are having her go to a friends house, rather than to take a chance of walking in on her dad sick or passed on.
But, you cannot spare her from the final stage of this disease. And she will not be treated or "judged" harshly for anything that she might or might or might not have done, since she was not the adult in the situation.
It would be great if you could provide a safe place for her to reach out to others that know about what she's feeling (child psychologist) and how she feels (other teens going through what she's gone through).
I'm not saying that you should feel guilty about your choices here. I'm just saying that your daughter won't experience what you do when finally reaching out for help.
Teach your child that she can think independently, and that she can reach out to "professionals" that are there to help her through the hard times in her life. We teach our children to fly, away from the nest (in a safe manner) The best parents are the ones that know that a child needs other trusted adults in their lives to mentor them (some that have a Child Psychology degree, to be more specific).
I'm sorry that you are now dealing with end stage alcoholism. I'm sure that your husband is appreciative, when he can be. I hope he doesn't suffer too much, and that you can keep strong through to the end.If you want to talk, i'd be happy to oblige.
Liz
Liz