second-guessing is familiar – it simply means criticizing specific actions after they have happened. Therefore, second-guessing yourself implies criticizing and doubting yourself, your abilities, strengths, and decisions.It seems like a small obstacle in your decision-making process, but scientists would argue it is much deeper than that.
According to a study, people who constantly doubt themselves are prone to a wide range of psychological problems, from mood swings and lower self-esteem all the way to anxiety and even depression.
This idea is backed up by research conducted at Berkley, which lists indecisiveness, proneness to rapidly changing opinions, and procrastination as additional issues self-doubters face.
Read more on powerofpositivity.com