I have learned over time that too much perfectionism leads to lots of unfinished projects and frustration. So my battle becomes one within myself to accept the imperfections in my creations and value the effort and experience of producing it.
My last lesson:
I've only machine quilted two quilts on my regular-sized sewing machine. When I was literally in the middle of DH's log cabin Christmas present quilt putting in the first few rows of diagonal quilting lines, I almost gave up because the lines were so crooked. Then I ripped them out and started over with a different, more blendy thread color. I forced myself not to examine the results until I got about 20 rows done. It was amazing how bobbles kind of disappeared in the mass of lines. It will win no quilt awards, but it looks very nice draped over the back of DH's recliner in his study. I'm very glad I stuck with it and finished. (Panic over finishing it for Christmas helped, too!)