Often times, when something goes wrong, say, failed a test/interview, lost a game or broke up with someone, you are told to act differently. Be it study harder, prepare better, train harder or find another partner.
Doing the suggestions might show some improvement but true success comes from within. Actions are external therefore much easier to manipulate. However, when the internal mindset/belief is changed, only then will amazing things happen. Great performers and successful people tune their beliefs about whatever they want to accomplish to the image that they desire and thus the explosive performance/result.
Change your beliefs by visualising/seeing the outcome that you desire as often as possible (daily) and you’re one step ahead towards achieving it.