I started doing prone masturbation in my adolescence. Maybe 15. I thought I as crazy or different so I never told anyone about it. I'm now over 30, Been alone my whole life. Quite doing PM and don't have sex because I mangled my penis to an extent it has droopy/excessive skin, Hurts near the tip & always uncomfortable.

I discovered what PM is because I found myself in a situation where I was going to be assaulted. I wasn't taking care of myself at the time so had to make a change a become healthy and strong. They also said I needed to get laid, as a burn on me.
So, to try and fix myself I google humping the floor and found PM is common and I should go to the doctor about my mangled penis immediately.

I haven't gone to doctor yet but am eager to find out what damage I've done to myself. But after 15 years of not doing anything I don't have much hope of being healthy, Physically or mentally.