Beyond all the other advices (don't overeat, don't over drink, sleep well, check your blood/urine tests regularly, etc.), time-block every event of your life in

Beyond all the other advices (don't overeat, don't over drink, sleep well, check your blood/urine tests regularly, etc.), time-block every event of your life in 15 minutes-increments (use whatever fancy or banal calendar app for this, time-blocking should become as natural as breathing) and optimize with time for larger and larger blocks. In 5 or so years you will be able to predict the events of your next few days with 70+% accuracy (even more if living a stress-low life) and plan for large swathes of time. Planning for 14-hours straight focused activity becomes then a simple entry in your calendar. As in everything, meden agan, nothing in excess [1]. [1] https://en.wikipedia.org/wiki/Delphic_maxims#Entrance_maxims https://en.wikipedia.org/wiki/Delphic_maxims#Entrance_maxims