First of all, you are not confident in yourself. You really want others to pay attention to you, but you are afraid that what you are about to express will be denied. So if you want others to pay attention to you, you must have confidence.
In fact, for an examiner, it doesn't matter whether your answer is important or not. What he/she wants to see is whether you are passionate about the job you are applying for and whether you have a strong desire.