I go to AA. When I began the steps i was atheist. I was just like you-- loved the fellowship part-- meetings, hanging out etc...but my history showed that was never sufficient to get me sober. I saw a lot of truth in the 1st step and me made me willing to have an open mind to God (as I don't and never will understand Him) and that allowed me to go through with the rest of this process, which has given me a great life. I have freedom today-- something i never had in my life before. And that is from getting a conscience contact with God through the 12 steps. Today, I know that there is a God, and the fact that I can go anywhere on this earth a free man goes, and not have to worry about "people, places things" and "triggers" is a demonstration of power that only God could have given me-- not something I coulda gotten myself, or by attending a lot of meetings or calling a sponsor. God is there, my friend, and if you want you can have these great gifts too.
I wish you the best of luck.