When you manifest the worst case scenario in your mind you're actually taming it to bring it to desired consequence. Many people don't undertake the second step. They just keep thinking about the worst repetitively; not going to step two where one can discover the true strength in oneself. That step two makes the difference …
Learn from those above you and teach to those below you.
They are a reminder that you need to shape your future more effectively.
Unless you challenge your mind and body, how would you evolve?
Hardwork leads to failure which leads you to success. Hardwork is the test ground of your effort and failure is the test ground of your motivation. Unless you pass both the steps, you cannot reach success.