A humble spirit is one that recognizes who they are and what they are called to do by God. Humility is walking in this understanding - that all you are and all you have comes from God AND that He has gifted you with talent and power to pursue His purposes for your life. Humility is not being a doormat. It’s being a son or daughter of the king - who bows under His authority and does not bow to the evil one.
Paul was humble, but he taught with great authority because he was given an anointing to do so. He was filled with the Holy Spirit to accomplish signs and wonders to fulfill his purpose. What does God have planned for you…? How has he equipped you…? If you don’t know, ask Him!