If going to xmas celebrations is just too much, just have xmas with someone or people you feel happy and comfortable to be around. Dont make the day a be all of everything day. Remember it is a religious festival and this year I learnt a little of the history of it and I actually am less inclined to the celebration than I was before.
If you dont want to see certain family members, dont visit. Make a date on another day and visit them individually or seperately - which might ease any social pressures.
Most of all, put on a little music, find something good in the day and send blessings !!!!!!
We even played a bit of pass the parcel this year - with a shared gift and it really worked.
Merry Xmas and a very special New Year to you ((()))