One of the most important goals in life is contentment or satisfaction.
One has just have to define one's own parameters, criteria and indicators of contentment based on one's own values. However, the rule is to be as SIMPLE as possible.
Contentment or satisfaction is better than success per se as pointed out in the poster below. Achievement of success in something contributes to contentment. Non-achievement of success in something should also contribute to contentment (if a person accepts that non-achievement of success in some endeavors is a fact of life).
ROJ@19oct23