I have mixed feelings on this. It sounds simple, but...
I get real bitter when I get told to practice self care. Try getting enough sleep when your kid's meds are all screwed up and they're bouncing off the wall at 3am. Or when they're so hyper you can't cook because they keep running outside, and you've burned your meal enough times that week to give up and just microwave something. And because you're fatigued and burned out, you binge watch this or that rather than getting out and gardening.
Statements like these, while rosy, aren't really good general statements because they suppose the child in question has an average level of needs, and the parent in question has an average level of support. This isn't always the case.
I prefer "do the best you can with what you have to work with".