Some days go like that, luckily you are able to laugh sooner than later.
One of the last quilts I did on the long arm gave me all sorts of fits... it was a simple quilting design but the first back I had for it wasn't large enough which measured as if it would be but once I loaded it, it wasn't... So then I went and bought more fabric and for whatever reason I didn't cut the pieces correctly and it wasn't big enough either but I had enough to make it work.
And then the machine was balky and my stitch lengths are simply awful.
Pulled it off the machine and a year later it isn't so bad... no one else knows about the wrong back or the issues with the current back and although you can look for the bad stitching, it's my quilt and I don't
I'm laughing now but I wasn't then!