psychology and emotions contributes mostly to trading success or failure, I think they both have equal weights in effect on an individual in the trading industry
Emotions are still under psychology to me, And this is because it is with the mind. People who try to differentiate it may only be trying to sophisticate it but if you master your psychology you will not easily be affected by your emotions or pushed into making emotional decisions that will affects the outcome of your trade. Emotions is under psychology, but emotions is not the only thing under psychology worth mastering. Trader wey master e psychology dun solve half of e problem.