Instead of using credit card, approach people with money to invest with you. People with money would love to get into crypto. If you’ve built mining rigs, you can put together a simple business case.
Oh Yeah, this is some kind of a scammers do, Lol
when all things gets F*cked up, then what? try to run out of the people you scammed.
On the other part, I've seen people with their friends and relatives getting unto group and doing crypto business, the downside of it is that when things get too difficult decisions take place, you can't simply decide on yourself as there are others that you may want to consider.
It’s always dumb to use your own money, it’s even dumber to use money you don’t have (credit). Use someone else’s money and give them a nice ROI while you get a decent returns as well. Spread the risk and increase your profit.
You eat your own words dude, someone else money is not also your money to use of, you are more likely increase the risk by using people around.