I’ve had quite a few and have learned to relish them, because if you do the forensics you’ll find clues about where to make adjustments and how to eventually accomplish your task. I’m not talking about a mental list either. After the second attempt, I wrote everything out long-hand, but didn’t start with the obvious issue, my grip. Initially, I brainstormed everything that went well, because in every failure a lot of good things will have happened, and we must acknowledge them.