Think of them like the 1% of the tech community. Yes, it can be done. No it's likely you it will be you. And that's fine. Though it can feel like "how the hell are these insanely productive people able to do all this stuff when I can barely even brush my teeth twice a day?".

Don't sweat it. Just like there are billionaires, there are also these mystical productivity billionaires. It's a cool thing to behold but it's very much not the norm.