Squash is a dynamic game, and the process of having a better squash game is complex. There is stroke technique, movement, shot-making, strategy and competitive mindset, to name a few of the basic facets of the game. And they are all intertwined. It is a complex game and when you focus on improving one thing, often another aspect suffers.
See link below for details - https://bosssquash.com/blog/better-squash-game/