To build confidence, ensuring itself as something that can be done. By confidence would happen. If we are to prepare both subject matter. How to say the story sequence.
To build confidence, self-belief is something that can be done. The confidence will occur. If we have good preparation. Both substantive way to, say, the story sequences.
To build a full faith is what can be done. The confidence will occur. If we have a good preparation, the content, the way you talk, the sequence of stories.