Not being able to listen to the opinions of others, he has developed an arrogant and self-righteous personality. As a result of overestimating their own abilities, they cannot

　　As a result of overestimating one's own abilities and failing to objectively evaluate the roles of colleagues and leaders, one gradually develops a personality of "uniqueness", deviates from the collective and society, and develops a serious selfishness and self-interested behaviour.

　　Secondly, jealousy will follow.

　　They can't stand to see others surpassing them, get angry when they see others doing well, lose control of their emotions, don't know how to respect others, don't know how to understand others, and may even malign others.

　　Thirdly, it will make it difficult for people to distinguish between good and evil, and they will continue to make mistakes and even lose their minds, not being able to extricate themselves from their mistakes, which will lead to the occurrence of extreme behaviours.

　　Fourthly, it will cause rigidity in family relations and disharmony between husband and wife, giving rise to frequent quarrels and arguments, and even triggering domestic violence and leading to marital break-up.

　　Fifth, it is a serious impact on physical and mental health, people who have a love of performance psychology, the heart will always be in a high state of stress, the brain is always not rest, sleep will be impaired, the function of the digestive system will also be reduced, prone to cardiovascular disease, and even cause mental illness.

　　Psychological warning:

　　Getting along with others, to objectively look at others, correctly look at themselves, not too sharp. To understand that "there are people outside, outside the sky" reasoning, know that modesty makes progress, pride makes people fall behind, and even can go to extremes.