Lasting growth can’t happen without a generator. To progress, you must maintain a positive posture in the face of the highest rejection, and then keep going. When your happiness depends on results, your results will spiral. Actually, your results depend on your happiness, so you must keep your happiness independent of results.
This wisdom goes back to Genesis, when God gave the first business advice. He told Cain that if you do well, your work will be accepted, but if not, be careful because sin is waiting to catch you. That’s why the successful keep their heads up no matter what.