A new "learning" collaborates with the improvement of "work", but the problem is having "time" to study, and still studying something that will really bring a return on investment. We have a basic triad where we spend our "time": "studying", "working" or "resting" (other activities).
If I dedicate time to work, my study and rest will suffer. This occurs with the other factors: dedicating to learning harms work and rest ...
The point is: choose something important to learn that can change your life to have better quality work and more time to rest.