Wow Rose that is a lot to deal with. You can't change her but you can try to change your reaction to it, but even that takes some time. What can you do for yourself that is positive today. It might be as simple as a hot shower. I always think a hot shower improves a situation by 30%.. Focus on the gift you did receive from family this Christmas. If you can outfit someplace you can see it most of the day.
Try to do something for yourself. When I get down I bake a box of brownies because it makes the house smell heavenly.
I will check in later,....