Success in anything challenging gives you confidence in your ability to shape your own life. Success helps you avoid "victim thinking" and gives you a greater a

Success in anything challenging gives you confidence in your ability to shape your own life. Success helps you avoid "victim thinking" and gives you a greater ability to take risks. That in turn is an _opportunity_ to be happy, although there are plenty of successful-but-miserable people out there. It doesn't have to be success at work though - could be success in a hobby.