Im not sure where it came from, but I've always heard that 8 hours was adequate for teens, 7 hours as you get older. Im 37 and still naturally sleep 8 hours a night.
I googled 'what is the right amount of sleep' there's a ton of information there. I usually trust mayoclinic more for health info. found 2 articles that may help.
how many hours and
10 tips for better sleep. quality of sleep may be an issue as well.
EyeQ is computer software that helps you read faster. Its really fun! You take a test to calculate your reading speed. Then go through a series of eye exercises, following objects on the screen. Then test your speed again. I did it and my son did it. It helped improve both our reading speeds.
The program was given to me by a friend, I had NO idea that it cost $250. Its very possible that its in your library at school. here's the site if you're still interested...
eyeQadvantage