I had 4 months of sobriety under my belt in 2013 and Thanksgiving is what did me in that year as well.
I even made it through a booze soaked wedding reception in October 2013 without drinking and my 50th birthday party in September 2013 without drinking.
Back then I started slowly with just a few glasses of wine every day. That led to a six pack of Christmas beer every day. By February I was back to my old ways.
5 weeks sober today. Feeling good.
Good luck.