My penis size is 4.5" it seem to be very loose, short & thin. I masturbate everyday. The skin on forehead of my penis is also tight so it is very tough & painful when I stretch it. Does it effect my sex life after my marriage. I'm 20 years old? Is it resolvable, or it is permanent? How I resolve my problem so that I'll satisfy my wife after my marriage? One more doubt, My friends tell me that every morning when they woke up, their penis gets erect, but my penis doesn't erect every morning! Even my penis erect only once or twice in a month in morning, is it a serious problem, what should I do? I'm very scared when I think all this.