Hi everyone, I myself am battling the same dilemma. To make matters worse, I am based in central London, so there is going to be partying all around me! To be clear, I am not sober just yet, but I am in the middle of deciding when to commit to becoming completely sober.
I suffered a really bad hangover yesterday, and spent a lot of money on alcohol two nights ago, and I figure, hell, maybe I will just stay in tonight and celebrate new years with my parents. As long as you have someone to be with, family or friends that's a good thing.
Despite the fact that part of me feels like a 'loser' for not following the crowd and partying tonight, I know deep down that it will be healthy to change the same old broken tape and actually wake up january the first without a hangover and feeling positive for the new year!
Good luck for all those sober already and those like me who are planning to become sober.