How to stop imagining damn porn

Oh god! I've never watching porns but imagining having sex with others or playing happy corner with others for 5 years!How should I stop thinking about this thing! It sucks and when I begin to think about it i cannot stop!! Fuck I never watch porns but masturbate for 5 years! WTH!!!Who can help me how can I not think about it anymore. For me , the stimulus is being uplifted by others and rub my eggs on a tree or something hard!!! Damn it! I did this becasue years ago when I played this game with other kids in my school girls love to see it. So I think girls like to see that I'm being uplifted and rubbing on a tree. Fuck it! Help me! How to stop thinking in that way! i know it's not good.

Hi charlieli! I think mastrubation without porn not harms you. Your situations is perfectly normal according to my experience because in this age our libido is on peak and its natural for Men! (It is good sign by the way) Porn kills it. So don't stress out it affects on your health and if you really think it harms you then masturbate in moderation. Its natural for every human being! I also suggest you to do meditation regularly it will help you to overcome this lusty imagination, keep busy yourself and do productive activities. working out, socializing etc. All the best Man! I hope you will find the way. 

its normal to think about sex . so let go on pmo. you can do it brother.