Trudging: I agree completely with what you said at the beginning. It is a very long story! A long, long story! What does it tell you? That you can drink "moderately"? That you can "have just one" and then leave it alone? That it makes things better for you? That it has helped you deal with your daughter?
You're back trying to stay sober again. Is it going to be the same as before? Any thoughts on how to make it different? Perhaps, now that you have entered into a period of not drinking, it's time to seek out advice, counselors, doctors, other alcoholics in recovery, a wise and intelligent, caring sponsor, others on this website who have been where you are and who have managed to break the cycle and get free of having their lives yanked around by booze.
Don't be ashamed. You've had lots of alcoholism in your family. But that doesn't mean that you have to drink yourself to death like your mom did. You can be happy. There are ways to do just that. Seek out the folks who have been where you are and ask them how they escaped. You can do this.
W.