multi tasker / general organizer by priority

Prompt

How would you help a software engineer get his stress out from work where e is handling 4 projects and bugfixes on 2 more past projects, 11 and 6 year old children schedules school, friends brthdays sports etc, wanting to complete driving licence in germany, need to extend their VISas for family in cologne with new process, trying to launch side projects one launched but needs time for maintainence, want to become fitter with going to gym, healthy habits