Okay, so I'm 15 years old and I've been watching porn and masterbating since it was about 12-13 years old. I've never had any problems nor have I been involved in any sexual activity/relationship. I've never had any problems but... Just recently I was going to masterbate, and I couldn't get a full on boner. It would get a bit stiff but not enough for me to jack off. So I stopped and I tried again two days later and the same thing happened. But throughout the day I get some normal random erections (like normal teens my age). Now I'm very scared and I don't know what to do. I'm going to stop watching porn first of all, but I don't know what else to do. :( can it be from watching too much porn? Please help me.. I'm lost and I'm scared. Will the erections ever return to normal how they used to be? Please, anyone with any experience of this or any help please comment. Very scared, I do get a lot of exercise playing sports. But lately I have been stressed about school but I don't know if that has anything to do with this... Please help