Good leaders aren't afraid. Period. They have fear, but it doesn't run them, rule them, or cause undo anger. Their fear motivates them to action. Seeking God action. It stirs them to positive God directed activity. Good leaders seek God first and then ask Him what is to be done when fear comes, when anger arises, when things go wrong, or before they ever start something... anything.
Fear doesn't immobilize or hinder them to ruin. Ephes. 4:26 "In your anger do not sin": Do not let the sun go down while you are still angry." Saul here has so many emotions that drive and control him that he is "out of control." If you read this passage of scripture and underline all of the emotions, they are scary. They read: "angry, galled, jealous eye, afraid, etc. It was hard to work for a king (boss) who repeatedly tried to kill you. I tell our youth pastor Noah, he's got it made working here, I've never tried to kill him. :)
Key: 1 Samuel 18:14 (of David) "In everything he did he had great success, because the Lord was with him." That is what God wants for you. Not the dysfunction that Saul had. Both of Saul's children turned against him, and rightly so as he was offering up his daughters as prize horses for show and trade.
From the same daily reading comes Jesus appropriate response; John 8:31 "If you hold to my teaching, you are really my disciples. Then you will know the truth and the truth will set you free.
Have a great day, and rule your emotions, don't let them rule you. P.T.