Ancient argument: What's determines success in trading: A successful methodology Psychology and discipline? Answer: BOTH! But this is not a "chicken or egg" dilemma. Clearly in this case method comes before mind. I don't care how much self-discipline you have. If you don't have a viable trading methodology, then you will lose money. So method is more important. Well, maybe "more important" isn't the right phrase to use. But it definitely comes first. The reason I say it may not be more important is because there are many valid trading methodologies available. Yet ironically, traders keep jumping from one method to another ... one indicator after another one book after another one mentor after another one seminar after another This is the infamous "search for the Holy Grail." Sorry ... doesn't exist. Like most things in life, people keep looking for the answer outside of themselves, w...