[ConcernedCitizen]

youre on darknet, right? there's like illegal crypto mining sites there where you can 'borrow' power from there supercomputer and mine like hell, so you maybe double or triple your money in a year.

I don't believe that exists. You CAN rent a crypto-currency mining VPS, potentially making passive income, but nothing to write home about. It's not possible to hash as much as you need, for it to be cost-efficient, anyways - without high-end GPU's in the dozens, at least. But I have never read anything like what you said and doubt it exists, or it exists and it's a scam, which I hope anybody would see through.