Why can't I sleep?!

Why can't I sleep?

It has been killing me all summer! when i get to bed, it is always about 11 p.m. I always read before i sleep, or listen to music on the radio in my room, but after i put the book down and lay down to sleep, I CAN'T! i may be so tired but i can't fal asleep. And when i do fall asleep, it is 4 a.m! and i sleep till 7 a.m.
I am 13 years old, i have to get atleast 7 hours of sleep, but i get just 2 or 3! please tell me how can i fall asleep, without taking any pills from my mom.

Try doing a sport so you get physically exhausted. This will help A LOT when going to sleep. I am 13 also and I play basketball for 1-2 hours everday and I sleep easily once I'm in bed.

And another thing that helps is if you go to bed and wake up the same time EVERYDAY.

Also if you really do want to read before bed, then read with a dimmer light. And let's say you go to to another room, try to have a dimmer light on, because this won't cause you to wake up from all the brightness.

Hope I helped!