I need help if I should sing in the talent show?

"Run though this article on how to build self-confidence: http://www.mindtools.com/selfconf.html

Learning to repair things also builds tremendous self confidence. Find some broken things around the house and ask us how to fix them. We have enough self-confidence to spread around the world. Years of successful repair have given me an almost obnoxious self-confidence to attempt a repair on almost anything up to nuclear reactors ;-)

When standing in front of a crowd just picture them all as being naked."