I'm 13 5"11 and can dunk a football on 9.5 and can dunk and basketball on 9ft and sometimes on 9.5ft. Will I ever be able to dunk on 10ft?
Sure. You are only 13, you still have time to grow.
When you grow. :D
Have you ever hit your head on a door?
Yes I'm 13 5'7 your way abouve average when your 18 I bet you'll be like 6'7