I am 14 years old. I have not tried pulling back my foreskin untill my friensa spoke of it. Before i just thought that my foreskin would come of later. I was never told about it as a kid. I thought it happened later in Life around 18, but i heard my friends and others who say it can happen at 4+. I have tried to pull it back but it only opens slightly allowing me just to see the tip of the hand, after this point it causes serve pain. Is this natural or is it not? Is their a way to get it so my full head is out?

Thanks for your time and answers.