PLEASE, don't berate yourself. I KNOW it is frustrating !! I have been there. Quilting is a learning experience like cooking!!! WHOOPS, I really NEVER learned how to cook.
There are at least 3 ways to make a mistake.
The way the fabric is CUT
The constancy of STITCHING a 1/4" seam
The way you PRESS the fabric with an iron!!
I am really BAD at pressing so I try to make my blocks if possible just a tiny bit bigger on the perimiter if possible so that they can be trimmed down perfectly after pressing. One last hint and this is what was passed on to me. There is always a tiny build up when you press a seam in one direction. Take a peek. When cutting a stripe, I always put the ruler NOT on the center of the line, but put the fabric edge ON TOP of the edge of the line. This will give you a hair more in compensation for the bulk created by pressing the 1.4 inch seam to one side. It WORKED for me. I HOPE this helps. As the old saying goes, try try again. GOOD LUCK and don't give up !!! Hang in there......
Line up to cut a 2 strip
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Cut a thin strip of lightweight fusible facing down Press then trim block Works if you are ONLY 1/8 short on each side
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