There is no enchantment equation or conclusive test that can let us know precisely what our otherworldly endowments are. The Holy Spirit disseminates the donations as He decides (1 Corinthians 12:7-11). A typical issue for Christians is the impulse to get so got up to speed in our otherworldly blessing that we just look to serve God in the range in which we believe we have been skilled.
That isn't the manner by which the profound blessings work. God calls us to serve Him in every way submissively. He will outfit us with whatever grace or endowments we have to achieve the undertaking He has called us to.