#TradingPsychology is a decisive factor for success when investing, reflecting how emotions (greed, fear, FOMO) influence buying/selling decisions. In Vietnam, stock market or crypto fluctuations often lead inexperienced investors to act undisciplined: cutting losses late, taking profits early, or chasing peaks/troughs. Controlling psychology requires a clear plan, risk management (stop-loss, take-profit), and avoiding being influenced by rumors. Success comes not only from analysis but also from patience and a balance between rationality - emotion.