When I was trying to get out of a particularly bad depression I set up a morning routine for myself to start the day: positive affirmations, meditation, visualization, stretching and walking to the mailbox to get the papers. I then made a list with only 3 MIT (most important tasks) on it and attempted to complete these during the day.
This helped me a great deal and I’ve added exercise, journaling and a healthy breakfast to the morning routine and a bedtime routine as well. I can’t do these every day due to depression but do manage some portion of them most days.