People overwhelmed with stage fright have negative attitudes. Or they develop a litany of other negatives. The audience looks really alive. It is a positive attitude that gets the competitive ice skaters up after a fall and continuing their program as if nothing happened. Successful athletes study sports psychology and positive attitude is key.
Performance is an act of faith.
You have to believe your body will perform what it has practiced whether it is a speech, a song, a dance or an athletic competition. A positive attitude will lead you to seek any help you may need to improve. A negative attitude shackles your personal and professional life. To illustrate how toxic and insidious a negative attitude can be, let me share a personal story. Early in my career, I was President of the UC Berkeley Library Staff Association and had what should have been the pleasure of introducing Lawrence Clark Powell, UCLA Librarian and founder of the UCLA Library School, to speak at a staff meeting.