Sleep trouble ! Helpppp !?

Hi , I am 13 and for the past year or so i have been having sleeping problems ! I have tried alot of things and it still just takes me anywhere from an hour to four hours to fall asleep ! Most of the time I feel sleepy but it doesnt matter still ! Once i fall asleep i wake up alot in the night and once im up it takes me awhile to get back asleep . Also whenever i even wake up in the morning I still dont feel rested .