It sounds to me like more of a problem with shooting form. I would go to an archery shop with a range and have them take a look at your form. Target panic is the inability to make a proper release in an attempt to hit the target as the pin passes over it. Lets face it. We are not machines. No one can hold their pin dead steady on a target. BUT, with practice, you can reduce the pin travel considerably to the point where it almost appears to be rock steady. Also practice allows you to be more confident and to get the proper release. But again, you need proper form. Practice does not make perfect - perfect practice makes us better shooters.
A little tip. When I catch myself beginning to jerk the trigger on the release, I move up to about 6 feet from the target, draw and aim, then close my eyes and make a smooth release. I know the arrow is going to hit the target but that isn't my concern. I want to focus on the release and remember again what it feels like.