No, you're not any crazier than the rest of us!
What amazes me is how I don't see the mistakes when I'm making them, when it would be easier to fix. Guess it's similar to when we're frantically looking for something in the house only to have someone else point out that it's right under your nose. Sometimes another set of eyes are good (finding keys) but other times they're not (spotting quilting mistakes). Happily, most people love the results, no matter how imperfect.