Fearless people have tenacity, which is the ability to keep fighting for something, and to believe you can win.
Perseverance is the continued effort to do or achieve something despite difficulties, failure, discouragement or opposition. To persist and not give up.
At the end of this, you should develop a strengthening faith capable of helping you faithfully endure anything, anytime, anywhere, because you know God is working for your good (Romans 8:28-32 Voice).
God exerts and expresses an unwavering perseverance when he sees our good days having gone bad. He doesn’t stop loving us when we fail, sin, or give up.