Welcome to SR.
Check out Melody Bettie's book, Codependent No More. I've found it to be an eye opener.
I think in general, if you already have a part time job but afraid to go full time because your BF might drink, suggests to me that you may need to take a few steps back, evaluate where you are and where you want to be. Part of recovery is realizing that you're tired of how it currently is and you want to make a change. From there, little things will happen but don't expect your life to be different overnight.
I don't attend Al-Anon but I spend a large part of my day in the forums, reading and writing. It helps to remain very open to what some folks have to say. I'm happy to hear that you're planning on attending your first Al-Anon meeting.