I did stop finally, 'hit the wall', without using AA, but I was very grateful to find it. You are right about some meetings, but I found two in London which were excellent , without all the religious or quasi-religious overtones. I still go back occasionally. I never had a volunteer, personal, helper either, but some people there undoubtedly find that a benefit.It means they have someone to phone or speak to and generally watch over them.
Try lots of meetings, if you can. You may find one you like.
The real point is that being an alcoholic is a very lonely existence. Being in AA you are aware that you are not alone, but one of many who have suffered just as you have, and survived. Being uncomfortable in a group is natural, but I found that hearing them talk made me more comfortable. Nobody expects you to join in, after all. And you are surrouunded by people who once felt as anxious about admitting to being an alcoholic as you do, or did.