Some of what you describe sounds like a problem with proper gun fit. If you have to struggle to get the right sight picture, the gun does not fit you properly. Or you need more practice.
People shoot clay birds the size of your palm moving at 60mph with a bead only. On the range or in a tactical shoot, the only thing moving is your muzzle, the targets are stationary. And peole do not run 60mph.
Sometimes we get too conditioned to having a ton of sights on our gun. I shoot good groups with slugs and just an oversized bead. A great cheap fix is an oversized fiber otpic, one that is like 3 to 5" long.
You can learn to gauge when to pull the trigger based on your sight picture. Ghost rings actually slow me down. Having Vang backbore your barrel is the best thing you can do. Quicker follow up shots.
Nothing will improve your aim like confidence. That comes from shooting. Shoot first, then decide if you need $250 in extras.