When using probability in Blackjack, it's essential to avoid overconfidence in card counting, as it may lead to an underestimation of the house edge and variance. Relying too heavily on basic strategies can also be detrimental if you neglect to adapt to the specific rules and conditions of each game. Moreover, misunderstanding the implications of probability can result in poor decision-making, such as taking unnecessary risks in unfavorable situations or failing to capitalize on advantageous ones. Emotional decision-making and tilt can cloud judgment, leading to bets based on feelings rather than sound strategy.