I don't believe anyone has represented themselves well 100% of the time and anyone who says it, well, I'll happily call them a liar. The human condition means we are imperfect, all of us.
Anyway, as you say, learning from those times we do it wrong, is the way forward; it's much better than getting down on oneself and means the path forward will be more aligned with our needs. Alas, many continue to do the same thing expecting different results - the definition of madness.