Even we are conscious as we trade it can still might to lead us into loss because it is a very unpredictable way of getting some good profit. But the more aware on how you are trading then the higher chances of getting good output from it. And this is a continuous way of learning because every single day there is a movement and you need to know how it goes.
I don't agree with you , as the market itself built by third party and raised by third party too.
So it is clearly not like what you think , the third party here could be government policy causing crash/vice versa on the market .