Paul’s ministry begins years after his call on the Damascus road.
It’s often said in stories: "his whole life was leading up to this moment." Or "She was born for this." We see it in Esther: “who knows but that you were brought to the kingdom for such a time as this?”
Much of our life is preparation for that time. Seek out your calling; prepare well for it; be on the lookout for ways to fulfill your calling.