The Sims 4 Affective Mod Pack at Zerbu

Sims will now remember their past experiences with a brand new feature for the game, lifetime emotions.
Sims who are in certain emotional states will accumulate points that contribute to that Sim’s lifetime emotion score.
Lifetime emotion scores are are stored in the “Skills” tab.
Sims who are level 2 or above will earn occasional Moodlets of the associated emotion. The higher the score, the stronger the Moodlets.
Sims in younger life stages will build lifetime emotions faster than older Sims.