Your topic title doesnt correspond on the thing you do mention on here since failures doesnt have a origin  but its just a result of not having a knowledge into things. Mistakes are normal since not all things in this world we do have knowledge or idea on it.Just want to ask on what particular mistake are you referring to? since there are lots of mistakes on different things but since you are on this forum then it might be mistake on trading,investing,wallet scam related or any loss of bitcoin or altcoins. If we are talking to trading then lack knowledge,skills and experience is the reason but yet later on we can overcome this thing.