Dealing with Lack of Inspiration

I've been trying to keep up my update speeds, and thanks in part to my NaNoWriMo experience, I've been able to push myself to write. I just haven't really been feeling it lately. My main suspect is all the time I have for Christmas Break. I'm not sure why, but I feel like when I have less time for writing, I want to write more.

It really doesn't seem like a big deal otherwise, but I don't really like forcing myself to write. I feel like when I'm bored with it, the writing has to turn out boring, too. I was able to put in a fight scene in the last chapter of Unsurvivable, which I'm apparently good at doing, so it probably wasn't that bad, but still.

Any advice?