Just let your luck deal with it.
I am afraid the luck will not always deal with us hahaha.
Mathematics,calculations or any formulas are not that helpful when we talk about gambling.
Using mathematics, calculations or any formulas can help us to make a strategy but once again, if that game is base on luck, then we cannot do anything except depends on the luck itself and waiting for the luck comes or not. If the luck comes, then we are winning. If it's not, then we are losing the money.