Many investors prefer to sell when prices fall, and the core reason is the fear of loss. The buying point of the market is often hidden in the downward trend, and this fear often becomes a stumbling block that prevents us from catching the low point. On the contrary, in the rising market, greed may blind our eyes and make us miss the opportunity to stop profit at a high position.

Emotions, this invisible thing, have an amazing influence. In information communication, there is a concept of "echo chamber effect", which vividly depicts the phenomenon that opinions are repeatedly reinforced and resonate with each other in a closed group. In such an environment, even people with independent opinions are inevitably affected by the surrounding voices, especially when the so-called authoritative people frequently pop up on the mobile phone screen predicting a sharp decline, fear may quietly grow and dominate investment decisions.

Therefore, it is particularly important to build a personalized trading system. This is not only a shield against market noise, but also a beacon to guide us to make rational decisions in a complex and changing environment. This system should be deeply rooted in the fertile soil of technical analysis and fundamental research, so that we can clearly foresee the magnitude of market corrections and the short-term and long-term trend context.

Having such a system is like holding a sharp sword, allowing us to cut through the jungle of the market, rather than blindly following the trend and becoming victims of market sentiment fluctuations. It gives us inner firmness and calmness, allowing us to execute transactions according to established strategies and rules, rather than being swayed by the outside world. In this way, we can gain a foothold in this market full of challenges and opportunities and avoid becoming a "leek" at the mercy of others.