It could be a mantra, but it is more truth. Positive outlook creates trust, trust creates boldness, boldness creates confidence, confidence leads to action toward that goal. Doesn’t mean our nerves won’t get the best of us sometimes. It means that even through nerves or outright fright you will be focused on the steps you need to take and the minute actions of those steps.
When confidence takes hold, the only thing stopping a positive outcome is yourself or an act of God, and God works for those who are confident and doing good. The only thing to fear then; procrastination and hesitation. Don’t make any deals with either of them.