Major mistakes that a traders makes was when they don't know how to control themselves or how to discipline themselves, well all of us here has started with less understanding or even zero knowledge when it comes to trading so it is up to us how we will gonna study it.
It is not only about controlling your actions and bridling your emotions. This is nowhere near enough, though it is definitely a required prerequisite for a successful trading journey, one of. It is not about just acting in cold blood, in a purposely ruthless and unfeeling manner, it is also about choosing the right direction of your trading decisions. And personally, I would rather stick with the latter still being emotional and all that. Really, what's the purpose of being emotionless if you are losing, even though in a somewhat disciplined and controlled way?
This seems to be another interesting facet of trading.