I don’t think ‘having it all’ means you are tired and exhausted. Because then you don’t have your health. Which I know is not on the list.
I think the ‘good job which pays well’ plus all the balanced/ flexible/time with kids/time for exercise is the hard part.
I have a job which I enjoy but had to ditch the high powered, well paid job as I was exhausted and didn’t see my kids.
So now I am happier in my job. I have time to walk the dog/ go for a run/ get all the stuff I need to do round the house. But it’s not well paid (I work for myself) hourly the rate is good but I choose not to work all the hours!