Failure and Why Failure Is Awesome

When people have a lapse or a setback, they kind of feel like the whole project is ruined and they might as well give up. We have to be able to use those setbacks, or those mistakes, or those times when we blew it, not as an excuse to quit, but as fuel. So really have to ask ourselves, ok, what went wrong there? Why did that lapse happen? Did i not follow through on that this once? And how can i change that so that doesn't happen again? What could i do differently to do this better?