Hello there Usedupdaughter, and welcome to our corner of recovery
I'm sorry your Mother is so sick from this disease. It is _so_ hard to watch somebody you love self-destruct from alcoholism.
And I'm double sorry to hear about that alanon meet. Most of them are _not_ like that. The ones I go to are very supportive. I cried my eyes out at my first meeting too, and few more meets after that.
You can certainly continue to love your Mom, and also detach at the same time. In fact, it's usually called "detachment with love".
Now that you have read "Co-dependent no more" you can pick up some more. My favs are "Paths to Recovery" and "From Survival to Recovery". You can usually find a good used copy thru Amazon. I went shopping for a therapist, and over the years found two _really_ good ones that did me a world of good.
You can also check out our "neighbors" in this other forum
Friends and Family of Alcoholics - SoberRecovery : Alcoholism Drug Addiction Help and Information
keep on reading and posting, this whole recovery stuff is hard to grasp at first, but once you get the hang of it you'll see that it gets easier.
Welcome again
Mike