Since I'm a Christmas person, and I like to relax during the December holidays, I won't try to sneak any personal development aspect in this article. You can make Christmas about progress, but you certainly don't have to if you dont want to. It's all about your value system.
For me, Christmas is about spending time with loved ones, giving them gifts, creating nostalgic memories, and talking about past nostalgic Christmases. Playing board games (which I usually lose), eating Christmas food (which I usually make), and decorating a tree. For me, it's important to have a Christmasy Christmas - the more different it is compared with the rest of the year, the more relaxing and special it will be.
Regardless of how you spend your Christmas this year or if you celebrate it all, I wish you a Merry Christmas and a wonderful Tuesday!