Saint Michael the Archangel isn't a saint, but rather he is an angel, and the leader of all angels and of the army of God. This is what the title "Archangel" means, that he is above all the others in rank.
Saint Michael is a champion of good, leader of God’s army, and the Prince of the Angels.
One of St. Michael’s jobs is to help people make good, Godly choices in all circumstances. He will help you when you have to make a hard decision or when you are tempted to do wrong.
St. Michael is a protector and defender of the Church. When you are in danger - physically, emotionally, or spiritually - he will come to your side.
St. Michael can help give you courage when you are fearful. Just ask him for help!