According to your textbook, rather than trying to eliminate every trace of stage fright, you should aim at transforming it into

Being nervous when speaking in public is actually a good thing. The Public Speaker explains how it can actually help you speak more confidently and effectively. rather than trying to eliminate every trace of stage fright, you should aim at transforming it into positive nervousness. it is a Controlled nervousness that helps energize a speaker for her or his presentation.