I think depression is the wrong word there. Too clinical, too enduring. I think you would be on stronger footing to use optimism and pessimism as strategies for thrive/​survive; happiness and sadness are the feedback mechinisms letting you know if you are using the right strategy:
optimistic and wrong = failed expectations-> unhappy
optimistic and right = opportunity taken and paid off->happy
I think depression is the wrong word there. Too clinical, too enduring.
I think you would be on stronger footing to use optimism and pessimism as strategies for thrive/​survive; happiness and sadness are the feedback mechinisms letting you know if you are using the right strategy:
optimistic and wrong = failed expectations-> unhappy
optimistic and right = opportunity taken and paid off->happy
pessimistic and wrong = missed chances->unhappy
pessimistic and right = danger avoided