The moon rose and fell in an instant, the sun invading the sky to warrant a new day. Through it all, Kit's sleep was restless. He had told himself that it was a lie; Susan was merely trying to get back at him. But one thought floated through his nightmares. “You just don't know.”
    The mere fact that Kit had no idea who his father was prevented him from achieving any rest on the issue. For this reason, he found himself in Helena's office with a very wounded-faced Susan.

There is obviously only so much you can do in this regard, but I believe you'll find your discipline in NaNo will be improved by minimizing the influence of negativity in your life. I try to avoid people who irk me, food I dislike, music that annoys me, anything at all, as much as possible (moreso than usual).

A good way to increase your discipline in NaNo is to avoid having a blog. If you must blog, don't fill it with pictures of a stunning young man. I wish I had taken this advice.