We are our own worst critic. I have not heard one person say they hated a quilt that someone else spent hours on. Quilts are stuffed with love and that's what makes them special, not whether the stitches or points are straight. I find loads of mistakes on mine, but no one else sees them. So, don't be too hard on yourself. You are a very special person for even trying!
Remember, EXPERIENCE is RECOGNIZING your mistake, the SECOND time you make it! We all have lots of EXPERIENCE!! :-D