Break through the cognitive puzzle of behavioral finance and use decentralized intelligent risk control and objective data matrix to block the wealth encroachment of emotional decision-making! This article provides in-depth compliance knowledge on the two fatal psychological traps of Contracts for Difference (CFD): the sunk cost fallacy leads to a deeper and deeper cycle of unwillingness to cut profits and increase positions against the trend, and analyzes the blind spots of filtering reverse signals and selective self-deception caused by confirmation bias. Describe in detail how to use WMAX conditional orders, reverse lists and intelligent risk control coding to completely isolate subjective emotions from transaction execution.