Working on your game is always on going because there is so much strategy involved. So just take one section of your game at a time. An example would be studying how to win at multi way pots. If you are playing poker and most of the time it’s always multi way, then study and become really good at it. Then study heads up pots and see what the difference is between the two. Then just pick something else to study like Big blind vs Small blind spots, etc.
just pick something you know you are going to find yourself in and study with audio books or videos or training sites, talking to other poker players, etc.
Good luck!