The problem is that what you report in terms of results suggests that your trigger control isn't as good as you believe. The most common marksmanship problem (by far) is failing to press the trigger directly to the rear without disturbing the alignment of the gun . . . until the bullet exits the muzzle. Believe it or not, a lot can happen between when you press the trigger and when the bullet actually leaves the end of the barrel. During that time, every little thing you do to disturb the gun's alignment will change the point of impact.
What you need to see is the front sight centered in the rear sight and on target as the front sight begins to lift in recoil. When you see that, it's called "calling your shot" and it's the only way to know (other than the hole in the target) if your shot was really good. If your trigger press is good in dry fire and you keep the gun aligned with the target all the way through your press, it's likely that you're doing something immediately after the trigger press and before the bullet leaves to move the gun.
Ultimately, it's all guesswork without watching you shoot a few rounds.
Money is factor for just about everyone. When you say "near," keep in mind how much you want to improve. Some people won't attend training if the teacher won't hold the class in their bedroom. Driving an hour or two to learn to shoot better is a small price to pay.
