Integrate Mental Skills with Technique and Tactics

In the modern application of sports psychology, how do I integrate mental skills with technique and tactics?

I’m a give you a simple method of a mental skill which is a skill to focus every time you play. The timing of the ball as it strikes the court, you say bounce! every time you hit the ball you say hit! this is a way to practice a mental skill along with practicing a physical skill. (bounce-hit) you will watch the ball better.