Christian vocation is paradoxical. Without releasing my attachment to the desire to succeed, I won't succeed. Without releasing my attachment to being an outstanding Christian role model, I won't be one. Without releasing my attachment to having things go the way I think God's planning them, I may interfere with God's plans.
Christian vocation requires a release of ego and all its attachments and wants. Christian vocation requires nothing more or less than for me to become an open, ready vessel of extraordinary capability, so God can work God's wonders through me.