During emerging adulthood, self-esteem and happiness for most people.

Emerging adulthood is the period of life between the ages of 18 and 25. During emerging adulthood, self-esteem and happiness increase for most people. Increasing happiness has become more evident over recent decades, because young adults are more likely to make their own life decisions. Hope this answer helps.

So you know what happened and so it doesn’t repeat it’s self