Greg is on the right track when it comes to routine when drawing and setting up on your target or animal ,pay most of your attention on your set-up .When it comes down to the animal take deep breath's to help you relax ,this work's for me . I get alittle jittery when i first see the animal and that's when i take my deep breath's and it relax's me for the shot .As a new hunter which I'm taking it that you are, so this is natural for you to feel this way.

nubo