I have a small confession. I haven't started my book yet. If your plans to work on "the book" over the holiday kind of fell apart, I'm here to tell you that you're not alone.
Semester opening is about to erupt and I doubt very much that I'll have time for the next three weeks or so to fill so much as a page. Good thing I work well under pressure. Besides, having a deadline looming will help the winter to go that much faster. (See how a little rationalization can go a long way?)
I've talked to a few people who's books are well under way and I am anticipating an awesome array of alteration when the books come back at the end of February.
Keep going. It's going to be awesome!