First sex is a responsible and important event not only for girls. Guys experience exciting moments, too... it's normal. You can drink a small amount of alcohol, it will allow you to relieve tension, to loosen up. The main thing is not to go overboard. You can also check
bollywoodxdivas.com, here you will learn how to behave with a girl, what she likes in sex. Do not worry, there will be multiple orgasms ahead.