All productivity is the interface of what and when.
Manage whatproactively rather than reactively i.e. plan, choose and anticipate.
Manage what with a Master List i.e. 1 list in 1 place of all you have to do, want to do, work and home.
Review that list daily, weekly and monthly.
Break large tasks down so that all on your Master List is brain and time friendly.
Schedule ahead when you will do tasks with the use of an old-school wall planner.
Do not plan with the calendar on the phone/laptop: screen size simply cannot provide the overview and perspective you need if you are to keep out of the swamp.
Get good at the polite no. Because every 'yes' to more work says no to health, your daughter’s bedtime story and that game of tennis.
Focus on your vital few every day. Improve systems to manage your trivial many.