Something weird has been happening to me since July. I received oral sex for the first time (I was a virgin) but had difficulty keeping it up. My erection just wouldn't get rock hard like it usually does. Even prior to then, I had trouble getting completely hard when I would masturbate. It occured to me one day that masturbationg a lot might weaken erections, and shortly thereafter, my erections actually became weaker. A few weeks ago, I had sex for the first time and my erection was soft then, too. I'm 22, going on 23, and can't see why I'm having this problem. I used to masturbate several times a day to pornography (sometimes 7 or 8 times, if not more). I don't do it that much anymore, especially since I'm worried that it has been the cause of the aforementioned problems. My penis even feels a bit different. Sometimes, it seems like it would rather go limp when stimulated than become erect. I do recall having experienced this problem before, and then, after refraining from masturbation for a full month, my penis would get rock hard again. Is it possible that I'm over-doing it? Can one masturbate too much, or is it all psychological? I'm so worried about this.