Kardex Trader says having market data and a solid strategy isn't enough to succeed at trading. What actually matters is your psychology: how you handle losses, your risk tolerance, your temperament. Two traders with identical strategies perform differently because of who they are.
There's a misconception that people assume once you have data or strategy or edge, it becomes easy. But in reality, the human nature element is very different to every trader. Having such depth of knowledge of the markets, but, and your stats and the statistics, regardless how human nature, you need to tap into that and understand yourself. Because equally, there could be another trader, same knowledge, same strategy, everything, but maybe their risk tolerance is slightly higher or they're able to handle the losses better. So therefore they can make their rules around them.
