I know how you feel - I haven't done anything yet and I could live without christmas too. I have 2 daughters though who like it, so I make the effort for them.

I think part of my feelings come from a long time ago when I was young. I used to get many gifts but my mother was very moody around Xmas because my father died close to Xmas. I remembered seeing her sad and this put a damper on Xmas for me. Now I try to put my feelings on hold because I don't want to repeat history. Try to keep things simple so you don't feel over whelmed. Buy some board games/crafts projects and play them together.