twiglet wrote:
Wendy, my Diary Quilt took 3 years to finish, because of that very thing.

Well, yes, partly it was the "sewing by hand" business, but still. One block in that quilt gave me such fits that I just set the whole thing aside for quite some time. Eventually I just did the part of the block I could do, then appliqued it to a background instead of trying to figure out those inset Y seams. Ditto that for the one that had curved piecing in it.
What I'm trying to say is, I prefer the term "NFY" -- Not Finished Yet -- instead of UFO.

If there's any hope of ever, one day, going back and finishing them -- change their name

If not, throw them back in your stash or pass on to someone or whatever so there's no more guilt.