Christmas is the time I am most grateful to be sober because it was the time of my biggest disasters. I ruined so many peoples Christmases. Today, while I do not socialise with drunks, I have no issues enjying events where there is drinking. This was promised me in AA and it has come to pass.
"Why sit with a long face in places where there is drinking, sighing about the good old days. If it is a happy occasion, try to increase the pleasure of those there; if a business occasion, go and attend to your business enthusiastically. If you are with a person who wants to eat in a bar, by all means go along. Let your friends know they are not to change their habits on your account. At a proper time and place explain to all your friends why alcohol disagrees with you. If you do this thoroughly, few people will ask you to drink. While you were drinking, you were withdrawing from life little by little. Now you are getting back into the social life of this world. Don't start to withdraw again just because your friends drink liquor."
From page 100, the big book hs some good stuff on this.