This is why I created the thread, I've read about pool mining but I have no idea where to start.
there are several types of crypto currencies...
bitcoin was the first and it's the "main" one, like explained above the ship has sailled years ago, if you want to mine for bitcoins you need to spend thousans of euros
ethereum is the new fad, if you have a great gaming computer i wold say why not let it run for some weeks and see if you can get something..
however personally i think this ethereum is the pokemon go or fidget spinners of bit currencies, everyone is so crazy about it so strongly, in 1-2 months it will be practically dead.
but then again... everyone thought bitcoin was bullshit and now they are expensive as hell
there are plenty other bitcurrencies however i don't know anything about them, and so far i only seen bitcoin being accepted in payments
keep in mind, it's not just the materials that you have to buy, you will raise a lot your electrical bill, it doesn't make sense to make for example 10 euros of bit currency and spend 50 in the electric bill
anyway, i had been realizing bit currencies is just a pyramid scheme,, you are mining to sell to the dozen of websites that trade theese currencies to real currencies, which they will sell to other users