Once you get into highschool/college you'll be having plenty of late nights, so really my best advice is to get used to not sleeping a lot. You're going to stay up past 9, and you're going to wake up around 7. I recommend staying on the computer, as the screen is a sort of stimulation for your eyes. Reading actually makes you tired, even if you're sitting up so don't do that if you want to stay awake.
But be prepared to go to bed at 2 and wake up at 7 or 6 in a few years.