My advice would be to congratulate yourself on fitting much more productive stuff into a day than almost anyone else I’ve ever seen (sustainably). Don’t stress, and if you want to try to fit something else in, use a vacation day.
This. "I'm highly productive all but 3 hours every weekday and get a good night's sleep 9-6, help". WTF. This whole thread is crazy to me. "I barely have any downtime during the week" yes! That's adulthood (well, it was high school, too, but there was that sweet, sweet break of college that I didn't appreciate enough when I had it...) and it's the reason sane countries mandate 4+ weeks of paid vacation per year. Work weeks are a grind (throw kids in the mix and tell me how much time you have left then!) and weekends are barely enough to almost recover and take care of all the important things you were neglecting during the week. Multiple entire weeks off per year are required to have actual leisure and something like full recovery from the grind.
Can you switch to remote working? No commute saved me a lot of time and energy.
Try shopping and meal prepping on the weekends.
Try to go to bed at the same time every day. Eventually it becomes a habit.
Yep work remote it’s just startup life unfortunately