When you address something in front of people you don't know,how will you feel. Nervous ,anxity,excited or just feel nothing?For me ,though i've ever experienced things like this,nervous always around me .a strange feeling ,You are just afraid of things you want to do better. As someone puts it,get used to it,then beat it. This need a better repreparation. So go ahead,as the song sings 'i won't give up ,no i won't give in,until reach the end'