Doubting Fear

Illuminated Mind has some incredible points today that just hit home in a big way.
"If it's not working... Doubt yourself" is the title of today's tidibt, and I'm a big fan.
A couple years ago, I was certain Ryan was someone I could never have. He's a tattoo artist, with a Rock Star personality- not to mention talent. I'm marrying Ryan in less than six months.
If I had never doubted what I was, at one point, certain of, I would have made that miserable conclusion a miserable reality. By doubting myself, I allowed a beautiful thing to come into my life and blossom. Those nights that I wrote him from basic training, miserable, and wanting nothing more than I wanted him, I doubted what I'd been sure of weeks before. I let the seed plant itself.
I was sure I'd never survive basic training, never mind manage AIT and become a real medic. Oh no, not me. Not only did I do it, I spent a long time in training, and survived more than many of my counterparts would have without ever getting in trouble. I doubted what I knew I couldn't do. I doubted what I knew about my own limits.
I was sure I'd never survive my divorce. Oh, the heartbreak! The man I'd leaned on, cried to, cried over, and cried for was no longer mine. The man I'd been through hell with and for, and who I put through hell. That day that I loaded everything I owned, including two less-than-travel-savvy cats into my little red dodge neon and headed for Georgia, I had never driven more than 2 hours by myself. I was sure it was going to be a disaster. I was sure I'd fall on my face. I was sure I'd never manage. I puked the morning I left. I was terrified. I was sure I was bringing myself to my own end. Some part of me, though, doubted that weakness- and I managed to rise and overcome. And would you look at me now? Some of the best things that ever happened to me came out of getting in that car that day, scared as I was. I found my sealegs that day, and nothing can shake me now- not like it did then.
People tell me to be confident, be sure of myself. Why? Look how far doubting myself has gotten me.