Chuck I know how you feel. I was in the same boat last week, but fortunately you only lost a day. In my project I lost a whole week.
I got this job at work of making a custom sheave for a sailboat. The sheave block has to be at a 11º angle from forward to aft,then twisted 6º off the centerline of the boat. This gets mounted to a plate on a house cabin top that is on a slight camber. Yeah fun...
So I spend all my time last week fabbing up and machining all the parts. Because the thing is so construed, and this sheave is right in front of the helm, the boat owner will see it every minute he is on the boat. That means function and looks are paramount. So I polish this thing all up, then tack weld the parts together.
Nothing fits. Not too far off, but a more then a few thousandths so this means everything needs re-machining. I start to file, hack and cut on my parts hoping maybe I can save some time. Then I realize its 5pm on a Thursday afternoon. We only work 4 day weeks and get out at 5:30pm. I pull everything apart, set it on my bench and come to the realization I will not hurry this project. I will re-machine everything come Monday...being right back to where I was the Monday before.
It kills you, but sometimes things just don't work out right. Better to take a deep breath, back up and punt again.
I have no intention of traveling from birth to the grave in a manicured and well preserved body; but rather I will skid in sideways, totally beat up, completely worn out, utterly exhausted and jump off my tractor and loudly yell, "Wow, this is what it took to feed a nation!"