Masturbation should not be considered something that's inherently harmful to the human body. It relaxes one and it calms you down. don't let it bother you so much. Sometimes you feel like masturbation is a curse of some wrong thing you did in the past, but now i feel like that's not the case. All teenagers that I have come across have done it and so there's no need to feel like you've been shaming yourself. When you masturbate, learn to forgive yourself. Take it easy. Don't do it when you don't feel like it though.