The requirement for AA is "a desire to stop drinking." I'm not sure how you'd be received in AA, or how much you'd get out of meetings. It's not an "exclusive club," but AA specifically wouldn't suit your needs. Here in the city where I live there's a chapter of Overeaters Anonymous...which follows a 12 step program. I don't know where you live, but the 12 step programs have been used to fight a great number of self-defeating habits. Good luck in your efforts.