my aunt was a Professional Drapery maker Designer. She had her own business for nearly 50 years. She never really retired. What she told me was "The difference between a professional and an amatuer is that the professional makes the mistakes LOOK like it/they are SUPPOSED to be there."
I decided then that if it took all the fun out I would be a amatuar. I do the best I can without stressing about it. Perfect is for God in my opinion and not worth meeting HIM to soon worrying about it. trust me SOMEONE WILL LOVE YOUR QUILT!! No matter how bad you think you have messed up! Most wont even see the mistakes so have some fun!!