Started my son @ age 7 he would set stands with me, I would have him gunned up but with no ammo . When he did get to start shooting them he didnt miss .
One thing i did was to have him watch videos with me , This started real early on, as the coyote would come in i would tell him when to bring up his rifle ( in the living room watching while on sticks) When the coyote stopped he would dry fire .
After doing a lot of this they tend to become very relaxed about a coyote coming in to a stand .
try it it may just cure the blues.
Jared is 13 now and one of the best callers i have ever hunted with , Only problem now is he sees them before i do most of the time and has them dirt napping before i get a chance.
Carefull what you wish for , You just might get it.LOL