Try focusing on yourself and what you want personally for yourself. Im sure YOU want to be happy on Christmas. So you have to let yourself feel joy even if the people around cant mamage to do the same.
If theres drama on Christmas remove yourself from it, reflect on what you love about the holidays drink some hot chocolate and watch a classic Christmas movie. You really only need yourself to feel joy and hopefully your postive attitude will reflect on others even if it is just for a while.
I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.