Still looking for that normal routine...how long did it take you to find a routine after ER?
You have 168 hours per week all to yourself. Why would you want to develop a routine?
I was seriously chronically fatigued for the first couple months of ER-- sleeping in all the way to 6 AM or even 7 AM, taking two-hour naps, and going to bed at 9 PM. I kept up with my workouts and after about three months I was back to my current sleep schedule.
But this is your chance to decide how you want to spend your own time. Most retirees start out by overscheduling, which quickly forces them to cut back to what's really important to them.
So maybe you could develop a new routine this week. Go to bed early, get yourself time-shifted around, and start running while it's still cool. You could nap during the middle of the day.
When the summer cools off, you could try a different routine of staying up later and getting up later.
Here are about the only things we regard as "routine" at Hale Nords:
Awake somewhere between 3 AM and 5 AM. (Spouse sleeps in until ~7.)
Nap sometime during the day for 30-90 minutes.
Bedtime somewhere around 8:30-9:30 PM.
Taekwondo every Mon/Wed night (my favorite black-belt classes, although I could train every day of the week if I took other classes).
Calisthenics at home every Sun/Tue/Fri (spouse likes this schedule).
Surfing on Thur & Sat, maybe Mon & Wed too.
Costco pizza on Wed or Thur.
Hide from the crowds on weekends.
Beyond that we pick a chore from the To-Do list or work on a project for 20 minutes a day. Maybe one in the morning and one in the afternoon, or maybe just one. No sense in getting all hypercompetitive about it...