The holidays should be about making good memories, not about making things perfect.
Do think about what's important. Happiness and fulfillment lie in the balance between self-care and caring for others.
Do socialize. If you're feeling lonely, find a church or community center where you can be with other people.
Do exercise every day. That's especially important when you're eating more. It's hard to be sad if you're physically fit.
Don't watch TV. Most programs are not designed to make you a better person, or even feel better.
Don't spend so much. You don't have to buy electronic entertainment equipment that far exceeds the human sensory capability to detect the difference.