You are NORMAL!! I spend hours and days agonizing over fabric choices, placement, etc. Often after I am started I find something I think I would have liked better...
Say the words free-motion-quilting and the perspiration runs off my body like a shower! I shake like someone who has had a pot of coffee!
Trust me, quilting fear is not something you invented. BUT, when we get in the groove and make something we love, what a high!