Well, since I've been coming to this board, I've learned a lot of little things to keep me going on days like you're having. Try something abnormal, adifferent way of practicing that you don't normally do. I read a post from one of the many wise archers on here stating that "You should be able to close your eyes, then draw your bow, set your anchor and grip, and when you open your eyes you should be looking through your peep at your pins." It helped me concentrate on what my draw cycle, grip and anchor feels like, instead of what it looks like.Also try practicing whilesitting in a chair, or even sitting on the ground or kneeling. Anything different will help.

Give it a try.