Meeting someone new

Ok, this may sound strange but I dread meeting new men. A while after my 10 year relationship broke down, I started talking to guys online. A few months later one wanted to meet and I agreed. I found myself feeling so sick and panicked when the day got closer, I cried the night before where I was so terrified but I did it somehow. He wasn't the right one for me so it didn't last long at all. Slowly I started back up online again and this sweet, wonderful, patient man started talking to me. We've spoken about meeting up but just the thought makes me feel panicked again so we've just been chatting for 7 months. I try and give myself pep talks like "life is too short to be scared" and "I've done this before!" Which helps for a few minutes before the dread comes creeping back. I feel very stupid because this, what ever it is, is just ridiculous and I know it's irrational, I just can't help it! How can I stop being this way and just meet him?! I feel like a scared little girl at 31! Anyone have any advice?