We have all felt your frustration, I have been quilting since 2005 and I do not think I will ever have everything just so on a quilt - and for me that is part of the beauty of my quilts - a bit quirky like me
I learn something new with each item I make and I try to take that knowledge with me to the next quilt. We are all, our own worst critic! I have given away almost 250 quilts and no one has ever come back and said "by the way did you see it wasn't quite right" I am sure now that you have gotten your frustration out, and received some quilter's therapy here at QB - you are feeling better and can tackle your next project. Pins have become my best friend in quilting, I use them lots! I also do not press or iron as I go along as I am heavy handed and distort the fabric - I finger press. Please do keep quilting!