Trading is a very unpredictable job indeed but sometimes you got to rely on the luck a little bit too to carry you.
Not always skill will be enough especially not with trading you will have to take risks to get somewhere.
Others dont believe in luck. They say if you believe in good luck then there is the opposite of it too. So it would be better not to believe it and just rely on skills. But you cant change what traditions made to believe in luck.