My favorite Timeful feature (which I hope becomes a Google Calendar feature) was that you could set time estimates for to-do items, and actually drag them onto the calendar. It makes sense that if you have a list of things you want to do, there should be some plan about when you’ll fit those things into your schedule.
Take a good long look at your feet. If you were born at the starting line wearing a nice pair of running shoes, that was luck. Sheer luck. The most important thing you can do now is help those who had to start the race a mile behind you, barefoot.