[lilerjee]

- Change work environment

  Close unused apps
  Focus on the current work, and open the useful apps for it only
  

- Change the environment completely

  Go outside for a walk
  Ride a bike
  Go to a quiet place, e.g. Library

- Improve your workflow

  Thinking (at least the rough outline and flow) is the first before any work.
  
  If you have a clear overview of your work, you know how to do it and what work to do,
  and your mind will focus on them.

  Thinking while walking, riding, etc.

  Write the results of your thinking