It is only OK in my opinion to use credit if you have the money sitting somewhere else, but not to use money you do not have. I love the cryptos and the metals. I spent several hours putting this mining stock investigation together. I hope you find it of value. I think silver and gold may be ready to start moving up again very soon. This is an article I wrote breaking down some mining companies, the better of which should outperform the metals themselves by a wide margin. https://steemit.com/money/@motowngold/i-think-gold-and-silver-are-staging-for-a-run-here-are-some-mining-stock-ideas