As you improve your skills and learn more about how to apply your stick, you will reach a point in the development process where the goal of every shot is to achieve "perfect" position. You want to always get the cue ball to float gently into the intended position for the next object ball. The experience can then be extended as you pocket that ball and the cue ball gently stops for the next shot. You seek the perfection of heaven on earth. You want to be as precise as if you picked up the cue ball and placed on the table exactly where ever you want it. And (to extend this fantasy to the ultimate), do this shot after shot.
You strive for this precision in shot after shot, chasing the chimera of superiority. This is a lofty goal. The occasions when even near-perfect position results help keep your hopes alive. It is the result of perfect planning, perfect execution, and perfect cue ball control. To do so more than once a week places you on par with the angels.
Perfection is achievable, once in a while. You can train, educate, and develop yourself to get nearer and nearer. It requires putting more attention on the shot than you have ever applied. Each shot is carefully analyzed and the next opportunity strives for finer and finer control. Each effort is compared to the intended result and past efforts. Improvements are gratefully acknowledged.
You begin to develop cue ball speeds and spins that can be repeated with some consistency. As these become more common, they also become more trustworthy. For example, set up a medium long shot and practice it until it will go in 80% of the time. Then work on using cue ball spin and speed to make the cue ball travel to a designated location. When done intentionally as part of your practicing efforts, improvements will sort of happen.
The process is to master one type of shot until you own it. Set up and practice one shot at a time. When you are good at it, slightly change the distance or angle of the shot and practice getting position. Proceed to another, and another, and another. There are hundreds of different shot types.
Eventually, the skills mastered to get position for one type of shot can be used for similar shots and only need some minor adjustment. Keep at it. There is sufficient complexity in the Green Game to keep you busy for your entire lifetime.