Hence the winnings of gambling is pure luck as far as dice is concerned.
Overall winning gambling needs luck and without luck we may gamble for entertainment. So we need not to worry about consequences when we are not being lucky, still we have some reason to stick with it .
Most of gambling games are based on pure luck. However, there are games like poker, that aside from luck, you need a good skill in order to win. With regards to slot games, that is really purely out of luck because all you have to do is click on the button and wait whether you win or not.
Gambling is all about math. And math already said that the advantage goes to the house. So logically speaking, you will likely to lose but why some of them end up profiting on days is because it is their luck that goes against the calculation.
However, even if you are good with math but you lack discipline along the way your still not gonna get the long term success, you are good in selecting bets but when you put your rage into the game, you will be deciding base on your emotion and possibly you will not be able to follow your game plan properly.
The outcome would be you will be defeated by gambling because of yourself.