The worst thing you can do is get into the habit of releasing the arrow when you're not on target. If you can't get into the dot, LET THE S.O.B. DOWN!

I've been dealing with target panic for almost 15 years now, even shooting instinctive with my stickbows. Sometimes it's not so bad, sometimes it's pure ruination. I've finally found something that has helped me, from Ted Nugent of all people. Don't know if it'll work for you but...

Target Panic

Another thing, if it just started since you got this bow, go back to your old bow for awhile. You've got to be comfortable when shooting.