We are probably all guilty of being too harsh on ourselves. I have been quilting for 30+ years. No matter how careful I am measuring, cutting, sewing, something is always a little off. I'll never be anything but an intermediate quilter at best. I'll never win any awards, and that's okay. Have gotten pretty good at turning that negative little voice off in my head or I would have quit quilting a long time ago. My motto is "do the very best your can" and appreciate it for what it is. When I look at other's work, I'm not critical of their workmanship, so I need to be a little kinder to what I've accomplished. Be gentle with yourself.