Reading through Sun Tzu's The Art of War, I was reminded of two things. First, constant practice is critcial. Secondly, mistakes in battle are more likely to lead to defeat.
Perfection is unatainable. Failure is inevitable. Still, while practicing for perfection, excellence for battle is discovered.
To fail forward happens during practice. To fail backwards, happens in battle.
Are you practicing or are you fighting?
Should you you be doing the other instead?