That has happened to me too - cut out all the pieces for a part of a quilt and the instructions were wrong so even though I followed the instructions I wasted two yards of fabric. I put it aside for a while and just this week brought it out again and finished piecing the blocks and put them together in a top. Next week I will pin baste it and then quilt it. Sometimes we just need to walk away. Be sure to read all the instructions so you can figure out where you are going wrong. Good luck.