Yeah there is something about
the holidays that greatly affects our mood.
Luckily we have many things to distract ourselves with during the holidays. In my experience, my mood during seasons such as this would depend on what I would allow to take control. Christmas is the season to be jolly and if it can manipulate my mood I would allow it and try not to let the anxiety take control.
Try not to ponder on too much on the negative and for just this holidays try to be happy and have fun. :) Whatever mental health issue or any other illnesses we may be suffering from, everybody deserves to be happy during Christmas.