Hi I'm newbie and first post here. I'm sorry if anything goes wrong with me

I read articles about cryptocurrencies. And I supposed to mine XMR using minergate.
This is a result of more than 12 hrs mining using VPS.
https://s30.postimg.org/6oqopv17l/Capture.pngOh! actually I understand It's not easy to mine if we don't have good hardware.
I read articles about AMD GPU mining if we using $300+ 6 AMD cards we can get 4kH/s speed and it can earn nearly 150$ per month. Maybe I'm wrong.
Then Zcash Its more difficult to generate hashes, I think. If we use above mentioned 6 AMD cards there is no profit.
Please tell me am I wrong or correct?
Thank you!
