Hello my friends!

As every new one who thinking to start mining now, I also have a question.
I will buy this week my first two RX580 8GB and I'm just wondering.. is this a good move? Should I do it or not, should I try it and may in the near future will the profit be a little more?
I'm planning to buy another two of them soon, but may this is just one way road with "near death" and all this is happening without a purpose?

Thanks for you help!