Emotion is your one enemy in trading and experience in your way to learn trading if you surpass your emotion and make your own strategy Im your your journey to trading will be success.
Upon reading the article that you mentioned above this is good to know and apply to your trading risks management is important to trading.
Trading is too risky, everyone had suffered and try to surpass the inconveniency that affect emotions and plans on creating sensible strategy. But through experience we can manage and control the possible outcome in trading. And always lift up with confidence and positivity to conquer consequences.