There's no separation, until you become the owner of entire structure and have others doing the work for you.
A cousin opened his business 20 years ago, some time ago, he said that he couldn't do that in this moment, the space is already over saturated and with online shops from abroad he's not really making much profit as he used to. How much that holds is a different matter, but what I wish to say is that "just start your own business" isn't the relief valve.
I find work-life balance completely whacked concept to begin with, as I can't dissociate myself while I'm going through the endurance and mental tests that work/liberal system forces on me on a daily basis. It's what I struggling at the moment, as the reward of passing them is just maintenance with maybe occasional treat, if I am lucky.
What I tried to say is that your pay or constrained leisure time isn't your personal failing, it's the system that has seemingly increased the flow rate of extraction through its available means.