Light Position Mentality, Heavy Position Operation
Most people have the problem of making money with light positions and losing money with heavy positions. Small positions can allow for relaxation, boldness, and the unity of knowledge and action, as small wins and losses do not affect emotions. In contrast, when heavily invested or going all-in on a single stock, even slight fluctuations are unbearable, and psychological pressure distorts trading actions. The greater the pressure, the more mistakes are made. After being trapped in a position, one may develop obsession and unrealistic fantasies. Forget about the principal, adopt a light position mentality while operating in heavy positions.
It's not easy to achieve, but strive to do so.