Hey man! be easy on yourself. It happens, more that most people will lead on Just to prove that you don't suck and nerves CAN get the best of you read this:

Two seasons ago during RIFLE season. I had a decent six point come looping out of a hollow straight to me. He trotted to about 30 yards. I raise my RIFLE. Aim squeeze and boom. Deer bounds off TOTALLY unharmed!!! I CLEAN MISSED A DEER BROADSIDE AT 30 YARDS WITH A RIFLE THAT SHOOTS 1 1/4" GROUPS AT 100 YARDS ALL DAY LONG!!!! Clean missed! With a Rifle!!! I can shoot a gun better than average, but I clean missed a deer due to buck fever!.

It happens bro. chin up and keep twangin!