Being a student myself of the swing, one of the things that I have come to realize is that it is not necessary to have a prior plan when going to the range or the golf course. Your plan should materialize and develop after hitting a few shots and feeling your swing for the day. That is when you should develop your plan and your thoughts/feeling for the day. Develop a plan on what you want to accomplish based on your feelings of that day. Develop a focus point and plan each shot.

Let's take a look at lesson areas that my students come to me to improve.
1) Preshot routines. (swing routines and putting routine)
2) Physical aspects of the full swing (mechanics)
3) Chip shots (mechanics and or touch)
4) Pitch shots (mechanics and or touch)
5) Course management.(planning, club selections / target orientation)
6) Putting (routine, mechanics, and or developing touch)
7) Warm up exercises.
8) Practice routines (short and long game)
9) Playing and practice goals.
10)Shaping shots.
11)Bunker shots.