Trading exposes your true nature. If you are a greedy person by nature, that will be what you will need to fight against to become successful in trading, likewise if you are a person who is fearful. Some traders have failed to recognize this, hence the reason they have remained unsuccessful in trading. Mastery of yourself and nature is key to being a successful trader and the sooner noob traders recognize this, the better.
If trading was mostly just strategy, many trader will be successful, but because it also involves psychology, that is where most have failed.
Where many people even get it wrong is, they do not accept they have such bad character and just keep making one mistake repeatedly. It is difficult these days for people to be honest with themselves which is a bad thing to do. As an individual if you want to propel high in life, in whatever you do, try and be very honest with at least yourself if not any other person because you owe yourself the honesty to be able to take the right decisions without being emotional or sentimental about it. When you do so, you will be able to truly know if you are a profitable trader or non-profit able one. If you are, continue trading, if you are not, run and leave trading alone.