Most of the literature I’ve read on psychotherapy says that all humans’ true psychological natures were developed before the age of six; what you experienced combined with the structure of your DNA bespoke who you would be from then on. You could make conscious changes to your mind, but you had to work at it all the time because the person you were born to be was always ready to come out and play, and play hard. I believe in that psychological rule of thumb even though my experience has seemingly been the exception.
