One of the fundamentals of shooting accurately is sight picture.
Sight picture is focusing on the tip of your front sight while it's centered in your rear sight and centered on your target. That means you might have a blurry rear sight, and a blurry target. It's difficult to do. But you'll have a crisp front sight.
Most importanty, you'll be accurate.
Forget your target and focus on what's in your hands right now.