This is the reason why a) I let myself off the hook for work that had to be rushed and isn't quite perfect when it ships, and B) why I'm not so goddamn critical of other people's work.

Most of us are works in progress, doing the best we can, iterating and making mistakes all the way through, but gradually and incrementally improving. This need to be perfect all the time is a neurosis that our society needs to lose because it results in us being perfect never.