My two pennorth :-
You'll have to let at least one good friend into your secret. I'm extremely uncomfortable about sharing things but in the end I had to, or die. It's a bit of a weight off your mind really, once you take that step.
You know the withdrawal is bad, but you also know it doesn't last that long.
Group sessions are like Marmite. I didn't want to go to AA and the one secular group I attended for a single session was a disaster. The only thing I had in common with the other people in the room was that I drank too much. Your experience might well be very different. I'm just pointing out that there are other ways to recover that don't involve being in a group.
Life after alcohol can be good, given enough time to let your body and brain recover. Well, I say good - it isn't a marvellous sunlit paradise, all the same old crap will still be there, it's just that you'll have a fighting chance of dealing with it. If you are drinking then you have no chance whatsoever.
Good luck and stick around.