ok, so im in my early twenties. im having erectile problems. im with my girlfriend for almost a year now. im extremely attracted to her, shes beautiful. after a few months we had sex for the first time. it was amazing and everything went well. the next time, we had sex 3 times that day. the 3rd time, when i put on the condom, i lost my erection. that had never happen to me before, i felt terrible, and she thought it was her fault. needless to say it put a ton of strain on our relationship. everytime we tried for almost a month after it happened again. so i went out and i bought enzyte and stamina rx. this seemed to fix the problem. i took a month worth of enzyte and the stamina rx before we had sex everytime. eventually i stopped using it and everything was fine. now about a month ago, i lost my erection again. its like i can stay hard the whole time, and then as soon as its time for me to put on my condom i just go comepletely limp, and cant get it back no matter what. my penis will still feel all sensitive and stuff, and ill still be totally in the mood, i just cant have sex. if we dont try and go for penetration, i have no problems at all maintaining it. im not sure whats causing it.

ive done alot of reading on here and other sites recently, and have read some stuff about porn and masterbating. ive been watchin porn alot for the last 5 years or so. i really only masterbate when i watch porn, and thats pretty much everyday, some times even more. im fearing that it has messed me up and ruined my ability to maintain an erection.

has anyone else had this problem, and gotten past it?
has my porn addiction ruined my chance of maintain an erection to have sex?
i stopped watching it, and also stop masterbating for the time being.
its only been about 5 days, but its a start.

if anyone else know what i should do to fix this, please let me know.
this is causing serious problems in my relationship.