Stressed out

I'm not sleeping lately. Last year I had trouble sleeping around this time for good reason. Two years ago I had trouble sleeping around this time for good reason. Three years ago I had trouble sleeping around this time for good reason.

Have I developed a habit of not sleeping around this time of year or is something else going on?

Work is going well I passed my probation period and have my 80 hours of comp time banked.

I'm almost done organizing the house (I cleaned out my junk room and moved stuff from the living room and office into it. There's so much room now!)

So why can't I sleep?