Someone (maybe on this board?) once said, "If you can't see your mistakes while riding by on a galloping horse, they aren't mistakes!" I like that idea!!
People who have artistic talent are so hard on themselves, but people who don't have that talent see things differently. When my son, now 20, started playing at piano recitals, he was so hard on himself if he made any errors. I always told him that most of the people in the room didn't even know where middle C was on the piano. When they heard him play they were so in awe of his talent, a few mistakes wouldn't even be noticed.
I like to believe it is the same way with quilting. The quilt you made will be seen as a miraculous work of love and artistic talent by the lucky recipient.
Stop fretting and enjoy your God-given talent!