Everything is luck man, no math no shit
Most of them depends upon your luck and only lucky people get those jackpot. Few games do exists where you require a good experience and skills to win those gambling else like roulette, computer slot machines etc are the luck based games.
There's no math formula could make you always win steadily, the only reliable math you can use as reference in gambling are when a lot of math experts says that no chance for you to win against the house, the odds created to beat players in the long run , that's how the real math work.
Although there is no such formula which can help you making money in gambling or can help you winning the bet in some gambling games like sports gambling etc. For example in cricket matches we always do calculation and try to bet on the bases of these calculation, but in most of the gambling games like dice games, slots and other casino gambling we only depend on our luck and there our calculation keeps no value.