There’s a really good book called ‘The Courage to Be Disliked’ by Ichiro Kishimi and Fumitake Koga. It's based on Adler’s concepts of not needing external validation or approval of others as you end up conforming to their expectations and not your dreams. It a realization that you can’t control the feelings and actions of others, you can only control yours. There was also a talk between Andrew Huberman and Jordan Peterson recently on this but they went deeper into the Adler - Carl Jung - Freud dynamics.