I am just about to graduate nursing school and I still feel that anxiety of messing up! I have always been a perfectionist so this was really hard for me to overcome but nursing school will give you tools and experience to get through those feelings. It really is all about practice. The more clinicals you have in school, and the farther you get that fear will start to be overcome by confidence. Sometimes you've just got to learn to let go and be along for the ride and accept that you don't know everything, you will make mistakes but it will be okay. You will learn the things you don't know and make the little mistakes right alongside your peers who are a great support system. Be excited : )