It's always the same with that kind of question.
If you have skills, use them. Maybe with an online job that pays you bitcoins, maybe with a real job where you earn fiat.
When you have no skills, well, it's gonna be hard. Money comes not out of nowhere.
There are a lot of people out there without any skills all wondering how they can earn money.
Those who have found a way won't tell. They don't need the competition.
Yes no one will disclose their secret of earning money as they don't want that others should also get benefits from it but if you don't have skills then you can always develop and learn those skills by working on it as there is nothing impossible in this world.
I do not agree with you. I can reveal my secret of making bitcoins. I'm engaged in MLM. In different projects. I have a lot of experience in this. Even beginners thanks to training can earn a lot of money on my team