Pregame Jitters

Ok, I've had pre-game jitters before. Everyone has. I've never experienced them this bad though... If this is how my coaches ever felt, i'm sorry. Its the feeling of- I have done everything I could, and now it was totally out of my hands. At least when I played, I had a little ball of nervousness in the pit of my stomach, but it was never bad, nor did it stay very long, because I had control over what happened, it was up to me how the game went and how I did. Now the little ball turned into a large boulder of nervousness, and instead of being located somewhere in my guts, it lodged directly in the depths of my soul. I keep thinking to myself, 'What if I failed them?' Pretty much the nerves are killing me.