It's so sad to hear this. But this has indeed grown common among the working class. As a matter of fact, there are those who are working hard labor 10 hours a day, 6 days a week. Some are even working physically tiring jobs day and night just to make ends meet. So your 100-hour weekly work setup is probably more tolerable if it isn't too demanding and you could even manage to create good posts in the middle of it.
The usual number of working hours per week here in my country is 48. But that's as far as the contract is concerned. In reality, it could easily extend to 60 without getting overtime pay. But that's in the private sector. In the government, it is usually just 40 hours per week. And in reality, it could easily be just 10. The rest of the hours, government employees are just normally sharing gossips, scrolling posts on social media, watching videos, running personal or family errands, attending to their kids, browsing Tupperware or Avon brochures, and so on and so forth.
The problem is that if you are working for someone else and you are working unwanted hours then it is a problem for sure, but if you are working for yourself and you are spending way too much, then it should be fine because the more you work the more money you could make from it.
"Way too much" is way too much. Anything too much isn't fine. Even if you love your job so much so that you feel like you aren't working anymore and so you immerse yourself in it all day long everyday, it probably isn't a healthy life. You know what's worse than working long hours on a job you don't love? It's when you really love your job that you devoted your whole life into it, and your job has become your entire life. Everything gets even worse if you put money into the equation.
I do not work for myself, I work for someone else as a freelancer and I can easily say that the best thing about my life is my boss and my work, I love working in this job and that is why I can say that even if I ever work 15 hours a day I would be happy, however life is not like that, for the past 1 year I had probably one of the worst years of my life and it doesn't look like it will get any better, and that's why I couldn't work too much unfortunately, I am hoping that I could go back to days when all I did was just working.
I'm sorry to hear that. But I think something isn't right when you hope that things "could go back to days when all I did was just working." I mean, there must be a lot more to life than just work.