For many recovering addicts they can't avoid New Years parties because they are everywhere and they'll be a lot of drinking. While the better option would be to avoid attending parties if you know there's going to be a lot of alcohol available it might be hard to resist the desire to have some fun. Should you then don't try to push yourself beyond your [tolerance] limits. When cravings assail you and you are certain you can't fight them any longer don't stay around. Leave.