Successful trading is not only reliant on technology but also on a stable mental quality. Fear causes premature profit-taking, while greed leads to chasing highs and getting trapped. Truly mature traders understand discipline and patience, maintaining calm amidst market fluctuations and adhering to strategies without easily changing them. Setting goals, controlling emotions, and establishing risk management mechanisms are the keys to achieving stable profits. Learning to understand the market also means learning to understand oneself; this is the true practice of trading psychology.