You should try taking 5mg of melatonin around 9pm. I have trouble falling asleep before 12-1am, too. Undeterred, I stay up too late every night working on whatever project I have and can't sleep because I'll lay awake thinking about it.

If I take a melatonin I get the benefit of becoming inept at writing code by 10 and will be sound asleep before 11 and ready to wake up hours before I have to start my day.