I was 14 year old male

I was 14m at that time. I had 3 more guys my age in classroom with me. One of the guys held me by the crotch aiming fro my genital for about a minute (over pants). All I could utter was "it hurts leave me" while the other two watch. To prove my masculinity that it really does hurt, i rush to the washroom to take a piss. But when I pull my pants down, i find that my penis has shrunk so much in size due to trauma that there were many wrinkes around its skin. I tried to piss but the trauma would not let me. I tried to shake it but won't help. .........Then as soon as I was doing that, two of those guys climbed up the washroom door and looked at me. I was completely visilbe down there. I catch one of the laughing. They mocked me later. .......... Every day they would ask me "if I knew how to take out semen?" I did not know it back then. I remember holding a blade near my scrotum thinking maybe this is how you take out semen. Thank God I did not go through with the plan. .......... One more thing that happened daily was that the guy who held me at the crotch took his pants out and stimulated himself dry infront of all of us. I did not know back then it was stimulation. ......... After that incident I was not longer the same. A bus driver always used to tell me why I always smile. But after that incident I lost that smile. ........ I developed porn addiction few months after that incident.