I am completely in the dark when it comes to mining and am quite new to cryptocurrencies in general. But was wondering if it is possible to still make some money on my PC.

I believe mining mostly uses GPU, and if so, would a radeon R9 390X be sufficient to make it worth the effort?

(P.S. I have it overclocked and watercooled as well if that would make a difference) and im paying just under 12 cents/Kwh.