It sounds like a little touch of the fever. Shoot at small game with your bow. My dad wouldn't let me shoot at a deer until I was able to kill a grouse or a rabbit or something. The other thing I would suggest is doing some stump shooting. Walk through the woods at a pretty good clip. If you get your heart rate elevated then this will simulate an adrenalin rush. Then start shooting at stumps. See a stump pull up and shoot. It will help you learn how to steady yourself and get it together. Good luck