I wonder if people’s personalities change through the decades.
I was definitely an extrovert when I was younger, but after two decades of marriage to an introvert find I am changing.
Though I enjoy people, getting to know people, talking to people, I also find a lot of energy, and happiness, even bliss from being alone, reading, thinking and writing.
Each time I take the Meyers-Briggs, I find I am further on the introversion scale.
So I guess one strand in a happy life is to keep the right balance between introversion and extroversion for your temperament.