Hi there i am 22 years old and since 5 months i have a serious relationship.The problem is that most of the times(not awlays-thank god) i suffer from poor erection like i cannot get excited.And sometimes when i think about sex i get arouzed,but when it comes to it....Also once i was with my girlfriend and i couldn't get an erection at all and i felt bad about it because of me and because of her(my girl is really beautiful)anyway we've tried anything and it could'n happen,after that she gave me a hug and she told me that it is ok and it just went up,without me or her having to do anything about it......It also happened to me to loose my erection during sex.I think that i am having a mental problem-or at least i hope so-can you give me an advice i can't seem to relax enough i think.And there is another thing everytime before having sex i am thinkin(will it be good enough for her)is there anyway to stop thinking about what has once happened? Please people give me an advice........