Experienced couples only....please?

I'm a healthy man in his mid 20's. I met this woman who I find amazing. We have been dating a few months and she has made it clear that she wants to wait til marriage or at the least when the moment feels right......well.... we have had a couple of those "moments".....and well..... coupled with my nervousness.... i simply couldnt perform. the first time which was a little more than a month ago i didnt get up at all. the second time was last night where i was up slightly up there, but went down shortly after the action....... now i must add that I understand that stress during the moment can often inhibit a man's performance.....and well adding this doesnt make it any better! Like i said before. I'm young. and I'm healthy. seriuosly i eat healthy and stay on top with my visits to my primary Dr. No high blood pressure nor high cholesterol, or anything of the sort. any way i was thinking tonite to do something, maybe a jaccuzzi suite where she and I sit and relax....of course i was going to be romantic....but not neccessarily adding any pressure for . i thought that if she and I can relax and just be "ually romantic" that this would take some of the edge off and help me and well us both relax. and if it leads to then maybe i can go all the way. I dunno. I'm wanting experienced couples response though. thanks again