Hi there georgiad--
Welcome! Have you had a chance to visit
www.oa.org? There are some questions there that you can answer to help you figure out if you are a compulsive overeater...although based on what you shared I think that you probably are. On that site you can also find a local meeting to attend.
OA isn't a "diet" club. It isn't a quick weight loss plan. It's a way to transform your life and find relief from the obsession with food. We start by cleaning up our insides, and miracuously, the outsides shape up too. The 12 steps are a beautiful way of life with blessings of love, support, fellowship, accountability, and honesty.
I recommend attending a local meeting, reading step 1 of the OA 12 Steps and Traditions, and then deciding if OA is for you.