I mark my arrows and will frequently find one that just doesn't want to fly right. Those become "grouse" arrows and ones I put judo points on for stump shooting.
I'm a 20 yard guy on big game, and a 30 yard guy on small game.
I think that finding a field full of ground squirrels will do more for your shooting than tossing arrows at a target all day. You should get your form solid, then practice in real life scenarios.
