My routine is very bare bones but it works for me to give me some focus and willpower over the course of the day
William James
talks about this, he says, you must do something you really don't want to do to start the morning, and it'll give you a boost all day.
IME, if you're not working out at least a little everyday, you're leaving energy on the table. It's very counterintuitive you'd think you'd expend energy and have less, but we're always running such a calorie surplus that it doesn't seem to work that way. It's like magic pennies, if you give them away you end up with more.
I do 3 sets of pushups, plank,
bicycles (the abdominal workout), and bicep curls with dumbbells. If you don't have dumbbells just find something heavy in your apartment. Extremely barebones like I said, but the workout can get done in ten or fifteen minutes. So maybe you'd start with 10 pushups, 20 seconds of plank, 30 bicycles, 10 curls per arm. Those are invented numbers, I would just go to your breaking point, see how many that is, and repeat. So you do the whole rotation of exercises 3 times through to ~muscle failure. And then each work work up like 10%. So the next week do 11 pushups, and 22secs plank, and 33 bicycles, and 11 curls.
And then I do a 7-10 minute
opening awareness meditation. Depending on how badly I need it and how distracted I feel. I think that working out if done properly is already a sort of awareness meditation, you're very embodied and in touch with your muscles and your limbs in ways that normal waking life isn't.
If I can nail those in the morning I think I'm 25% happier and more productive over the course of the day. Small simple stuff but it makes an impact in my experience
Also PS don't do those calisthenics exercises everyday, alternate days with a 10-15 minute run.