You cannot do much in gambling since usually this option is purely base on luck. Usually gamblers would lose their money especially if they gamble for long hours.
Well it is a fact that just going to a casino to play is a matter of luck, also it is not ruled out that things tend to be different if some strategies are used but it does not guarantee that you will win, therefore I would say that yes, the casino and games of chance are luck, but trading is a matter of knowledge, dedication, planning and management of each movement, but some people do not see it that way and when they see it another way they lose money and that is what should be Avoided.