Carol, I have been sewing fork at least 65 years, mostly garments , but I did do several quilts years ago( 20+). I just finished a baby quilt that was done with 1 1/2 x 3 1/2 strips.. I thought I would whip that out real fast, but NOOOOO way did that happen. By the time I squared up blocks, some of those strips go from 3/8 inch to 1 inch, some even look angled. But you know what? It looks right pretty , and no one even noticed the mistakes. Today I will start on another one, not the same pattern tho'. Please, don't be so hard on yourself!! Your sample block looks great to me, as it does to others. Strive to do the best you can, but not for perfection, or you will never enjoy sewing or quilting. Carol