Author Amy Morin says: "When you find yourself worrying, take a minute to examine the things you have control over."

First, acknowledge what's on your mind. Second, take a step back and broaden your perspective. Ask yourself: "What can I control?"

"Focusing exclusively on what is in our power magnifies and enhances our power."—Ryan Holiday

If you're struggling financially and ruminating about how you're going to pay the bills — that doesn't help. What helps is looking at your expenses and thinking ' what can I cut or eliminate from my bills?' Then ask 'what other revenue streams can I create?' This is how you shift your attention from what you can't control, to what you can.