Controlling your mind is difficult, but you can slow down your mind, feel the connection to your body, your presence, by simple observation of your natural breathing. If you keep company of your breaths, you will see that whenever you are
peaceful your breaths are slow and deep and rhythmic. You can voluntarily create the same breaths and watch the magic of your brainwaves slowing down and your stress, anxiety and fear leaving you.

Try and see!