Psychological factors significantly impact Blackjack performance, with emotions like excitement or frustration driving impulsive decisions. Loss aversion can lead to overly cautious or risky betting behaviors, while social influences from other players and the dealer can affect confidence. Cognitive biases, such as the gambler's fallacy, may cause players to mistakenly believe in patterns, influencing their strategies. Awareness and management of these factors are essential for maintaining discipline and making better decisions in the game.