There's nothing wrong with you. I think many quilters have similar problems with one aspect or another of the process. It seems to me that we all have difficulty "launching" into the part of the process where we have least faith in our skills. I'm guessing your strengths are design and careful piecing. If that's the case, your quilts may not need elaborate quilting to make them shine anyway. I know I spend too much time obsessing over "just the right" design. Don't beat up on yourself though. THERE IS NOTHING WRONG WITH YOU. Don't even think like that.