Oh, I don't think you are alone by any means. The funny thing is (or perhaps not so funny) that very, very few people would ever see or notice these little flaws that drive us crazy in our own work. I'll bet that if you picked out one of the most dazzling quilts in any show and then talked to the creator, she would say something like, "Oh, the stitching just isn't quite the way I wanted it." We're all looking for perfection.