Being the captain of your life
As a captain of your life, the most important thing that you need to learn is to make sure your thoughts are not going in in the wrong direction. The wrong direction is any direction other than the direction of your goals and values. You need to constantly be aware of the stream of your thoughts and actively direct them toward your goals. You need to be prepared that at any moment your thoughts might be swayed away by your emotions, needs, the bad experience of the past, etc. and might redirect you from where you are heading. At first, this might seem to be an impossible habit to build. But eventually, you will build the skill to master the stream of your thoughts at every moment and therefore you gradually master your actions and behaviors.