Regardless of busted bits and pieces, the best part of the story is that you recognized your confidence was a potential problem and you did something about it. Bravo.

I know a surgeon who once backed out of a procedure at the last minute. He had a valid reason, but I knew him well and he later admitted that it just did not feel right. Call it bad vibes or bad karma, he realized his head was not in the game and did the wise thing. He noted that his first job was to not hurt someone.

If your mojo ain't workin', it's time to park it.