As the others have said don't over do it. Shooting 10 to 15 GOOD shots a day, where you can concentrate on each and every shot is a lot better than overdoing it and trying to shoot large volumes. Recoil is cumulative and wears on you in long sessions causing bad habits to sneak in,[they are damn hard to break] so keep your sessions short for a while. Start close and work out as you progress. A CONSISTENT REPEATABLE GRIP, crisp sight picture, proper trigger control, AND A CONSISTENT REPEATABLE GRIP, yes the grip IS that important will get you there. Welcome back.