Can't Get hard when I need to

Hi, I'm 17 and have a problem.  I have never really had an issue getting or maintaining an erection until now.  Anyways like I said I am 17 and I am a virgin, recently there has been this girl who I've gotten to know and she wants to have sex.  She's really pretty and really cool, and she used to have sex with her ex-boyfriend so she has experience.  
So now to what I think of as a horror story.  The other day she came over after school because my parents were at work.  We almost instantly went to making out and I was in between hard and soft during that.  Then she said she wanted to have sex and since I'm a complete idiot I forgot about buying condoms so that didn't happen (eventhough it wouldn't have even if I had the condoms).  Anyways we kept making out and taking off clothes and then she went to give oral sex and I could not get hard!  I was so embarassed and we continued making out and then that was that.  I border line devestated because I was sure I blew my opportunity with this girl.  Anyways she managed to look past it and assumed it wouldn't happen again.  She has wanted to hang out and have sex again, and everytime we are about to hang out I try to "warm myself up" by seeing if I can get hard and I always fail and end up making up an excuse and cancelling on her.
When I'm alone and masturbate I can get hard just fine.  I was even at a dance the other night and kept getting hard here and there.  I used to get hard so often that it was anoying and now I cant get hard when I have a hot naked girl in my bed!  I don't take any medication, I don't smoke, and I occasionally drink.  I'm in pretty good shape and play sports and work out.  I understand that this is stress related and I phsyc myself out, but what do I do about it! please help
Thanks you.


This discussion is related to Teenage erectile dysfunction?  Help......

[money69]

Anxiety mate, there is nothing wrong with you physically so just focus on how it will feel etc... don't let the other enter your head