I was always nervous about giving presentations and speeches, but in a school setting, I would get over it through the presentation.
One exception was 8th grade...had to give a presentation in Hebrew about one of the laws of the sabbath...winnowing. No one at home spoke the language, and all I had was a shitty dictionary. My mom asked my teacher to just let me fail, but he made me do it. He wasn't being mean, he just wanted me to see I could do it, and there was nothing to be scared of. I cried the entire time, but looked around to my 11 other classmates, and they were all encouraging me. No one was a jerk about it, I had nothing to be afraid of the entire time. No one cared that I was stumbling over farm terms in modern and ancient Hebrew.