My shawl met it's demise last night!!!!!

My shawl met it's demise last night!!!!!
I made "a" mistake and got half way across what should have been a purl row doing a pattern, wondering why there were not enough stitches!!! Started to take it back lost a few and in frustration pulled the needles and unravelled all of it. I am now starting with 7 stitches again.
I started this knitted lace last week at a workshop we did with Shirl the Purl (Shirley Scott). Not my usual knitting because it is so fine and you have to watch the graft so closely but I was advancing even with a few mistakes along the way. My fellow participants in the workshop and moving forward with their pieces as well. I can't believe I was up to about 150 stitches or more and now it's back to the start and seven (7) stitches!!