I know I'm going through that right now. All I want to do on Christmas day is spend time with my immediate family at home. I don't want to leave the house. Instead, we are driving to see the extended family. Family is great, yes. It's reinvigorating to see them and catch up. At the same time....it's draining.
The days leading up to Christmas, lots of people are happy and optimistic, and will say "Merry Christmas!" or "Happy Holidays!". Once we reach the actual day, it doesn't feel as this big event as it was hyped up to be. Maybe it's because I don't celebrate the religious side of the holiday as much? Either way, I've always felt a little depressed on Christmas day, because I don't feel much magic.
My point is - Take some time to relax, if you can. It's your holiday, do something that you want to do. I emphasize that again - DO SOMETHING YOU WANT TO DO. If you do that, you might find some holiday magic and not feel so drained.