Maybe if you could find someone to help, like another person (friend, acquaintance) that has nowhere to go for Christmas or a child whose parents have nothing to give them and you can help with that. Could that make you feel better and more connected to people? I will be alone at Christmas, too, so it will be strange for me, so I kind of understand what you might be going through. My plan is to make myself a schedule of things I want to do for each day while I'll be alone and try to keep myself to it. I'm going to see if that helps, maybe that could work for you?