There is a bunch of us on RW in a thread called "On The Wagon For January". The rest of the year, it's a social chat thread, with us all keeping up with each other's lives, but in January we try to cut down, or give up, alcohol, and we get a big influx of new members who see the thread title and feel like giving it a try.
It ranges from people who more or less are alcoholics (but they have their own more serious thread), people who perhaps aren't alcoholics exactly but who drink what seems to me a frightening amount (e.g. bottle of wine or half a bottle of spirits or seven pints pretty much every night), right through to people like me who consider five pints a major night of excess and can happily go forever without a drink, but want to lose a bit of weight, or save some money.
I tend not to drink all that often, maybe once a week. From time to time (every few months) I drink far too much (for me) and feel ill. I'd like to stop doing the latter and stick to the former.
We each (on the thread) make our own rules and state our own objectives. Mine are: no alcohol except on a few nominated social occasions; no solitary drinking; no excessive drinking on those few social occasions. At the moment, the only occasions I can see are a Runners World curry night, which may or may not happen; a Crisis volunteers' party from which I need to drive home, so must be moderate; and Doggetts. I have only once managed to be moderate at Doggetts, one time when I only stayed till about 8pm.
No, immediately after midnight in the first few minutes of the New Year doesn't count either.