When you're afraid of something, such as flying, that will limit your ability to travel or visit friends. Likewise, if you're fearful of public speaking, fear will restrict your ability to express yourself and share your ideas. If you're scared of talking to your boss or asking for a raise, that will impact how much money you make.

Fear is exactly the same as excitement. Your heart races, you might sweat a little, and you might feel a tightening in your chest. Your body goes into a hyper-aware state.

The only difference between fear and excitement is what your brain is doing. Your mi...