Embrace that we think at multiple levels, not just fast and slow. Our thought process is constructed in 3 levels, due to the complexity of our brains. The first level is instinct, which is our emotional response, the second level is intuition, a learned response or skill, and the third level is reasoning, which is your conscious mind involved in complex thought. Be disciplined in your investment decision making while playing the long game. A loss is felt more keenly than a win, and there will be loses in investing. But, when you lose, it will be more likely attributed to bad luck, than a bad decision due to having made the best decisions along the way.