First, or early, effort? You’ve mentioned in some of your posts that you’re a newb.
Shit happens, dude, and that’s part of the learning experience. Giving up and walking away should be a last resort. Is it salvageable? Can you reshoot the parts you need? If yes, even though it’s a massive pain in the ass, do it. Time to form the habit now of doing what it takes to see your project through.
Besides, you can wrangle a little more time from your cast and crew and fix the issue, or you can walk away and turn all the effort to date into a massive waste of all their time.
Save the “what went wrong” analysis for later, and use that to do better on the first shoot for the next project.
I had to run pickup shoots on some early projects. Didn’t go out with shot lists, got hurried and didn’t really pay attention to everything in the viewfinder, made sloppy mistakes because I was frustrated. It’s not uncommon in the beginner world, so roll with it.