I've abandoned projects halfway through a pattern because the instructions weren't clear. I've stared at the pieces I've sewn, read the instructions 32 times over and said "What?!!?" every time and then I give up on it. I've realized that the reason I like sewing is that it's a challenge but that when I stop enjoying it, when the enjoyment I'll get out of a project is less than the frustration I'll get from it I can give up on it without regret. Some of those projects I've come back to and completed others still remain in my sewing room and a small few have been discarded.
This is a snuggly blanket from Amy Butler's Little Stiches which I think is adorable
The instructions were confusing and I wound up with some mismatched corners
This is just a flaw in my capabilities at the point, TERRIBLE buttonhole skills