score:2
Read the Satipattana Sutta and the Anatta Lakkhana Sutta and do Satipattana meditation. Examine the things you consider to be the self and see if they are worth taking as a self. As for the inner self, examine if there's anything inside you that is worth considering as a self.
Upvote:0
I allow myself to recommend you to look at two books: “The Joy of Living: Unlocking the Secret and Science of Happiness” by Yongey Mingyur Rinpoche and “Zen training” by Katsuki Sekida.