I'm 15 and my foreskin hasnt retracted yet. Is there any way to get it to retract or do i just wait?
Only a minority of foreskins will auto-retract. You should begin doing it manually. In fact, you should already have been doing it all along, to clean under it and to make sure you don't have phimosis, adhesions or anything else wrong with it.
Have you tried to retract it with your hand?
Some foreskins do not retract unless you pull them back manually.