I know what you mean about the performance anxiety thing! The first two times I had intercourse, I didn't stay hard long enough to cum, so instead I went down on her and she on me (but I still couldn't quite manage to cum). It does get better, especially the less nervous you are. If condoms numb you too much I highly recommend a brand called SKYN. They're the thinnest I know of and you keep more of your sensitivity.
I'm very new to this as well. I've always been the shy nerdy type who never approached women and I lost my virginity less than half a year ago (at the age of 30). Still trying to figure out what it was I did right!

Perhaps it was just luck.
Anyways, sex is fun and I'd like to repeat the experience. Hopefully I can learn how to make that happen more often. Welcome to the board!