Feeling Prepared

Have you ever felt unprepared for something?  I hate the feeling of walking into a room full of kids and not being completely ready.  It really seems like more things go wrong when I am unprepared than when I am set and ready to go. I can have my service prepped and all the things completely ready to go, and nothing will go wrong.  Or I can come into the room and not be quite ready to go, and everything will fall apart.  I had a coach in College who would always use a popular saying, "Proper Preparation Prevents Poor Performance". I want to do my part to be prepared so that God can use me to great things.