I can't believe it! I finished it today after picking up where I left off yesterday.
I was dismayed to learn that the last thing I did on this quilt was attempt to rectify an error. I decided at the time to minimise unpicking, I'd unpick the smallest amount possible and deal with a Y Seam later.
I had a "What was I thinking??" moment and VERY briefly entertained the thought of unpicking the rest of the block but decided the Y seam was the lesser of two evils.