Ways To Help Me Sleep At Night?

I go to bed late every night and I hate it! I'm gonna try drinking sleepy tea like an hour before I go to bed. I wanna go to bed at like at least 9:30 - 10:00pm. because if i continue this sleeping pattern it will be hard to wake up for school when i go back. ill be very tired because im gonna be getting up around 5:30 or even earlier if i want.