Terry Crews had a clip where he talks about the exercise habit, and how he (not sure if he did this or suggested this) would go to the gym for the time he allotted for exercise each day, even when he didn’t want to. And if he didn’t want to work out, he’d read a book in the locker room or walk at 1mph. A friend of mine did this, and eventually built an exercise habit out of it because, “why not, I’m already here?”. Obviously if funds or facilities aren’t there you could just change into exercise gear and go to a park to sit. Eventually you’ll move.

So OP, give yourself protected time and protect it.