👉 Overestimation is a phenomenon in which an individual's actual or perceived performance is significantly greater than what they actually achieved. This can manifest itself in various ways, such as overestimating their abilities, underestimating others' performances, or failing to perceive certain aspects of the situation. In general, overestimation can be harmful because it may lead to unrealistic expectations and a lack of confidence in oneself or others. It also contributes to feelings of inadequacy and can hinder personal growth and development