I created a new word! Míshījǐ . Comes from Chinese phrase, Míshī zìjǐ (迷失自己) Míshī zìjǐ is translated as "to lose yourself" Míshījǐ is a feeling, like Hiraeth or Sonder. Míshījǐ is the feeling when you realize you have lost touch with the person who you used to be, and aren't the same child or teen you were before.