Becoming more accurate is a good start to improving your game.  Many players just say " I want to improve"and underestimate how improving skills will also improve performance.  The difficult thing is to know where to start. Understanding the components of the skills/stroking of the ball, and the effect that has on the result, for example:

• Amount of power the stroke has generated
• How much elevation is on the ball
• The depth the ball lands within the court
• Whether the ball lands in the corner and "dies".
• Hitting the ball tight
• Being consistent