Am I being paranoid?

Happens to me too. Do you constantly have thoughts rushing through your head or what? Some nights I just can't stop thinking long enough to sleep.

Every night for me.

Try exercising in the morning, then keep yourself busy enough to avoid sleep (DON'T NAP!) until a reasonable time like 10 or 11pm. Then hit the hay and wake up at 8 or 9 at the latest. This should help condition you for a regular cycle if you keep it up for a couple of days. I suggest starting this weekend since it may be harder on school days.