I think if you are not lucky in life, then mathematics will not help when you came and lost all the money.

Mathematics is different from mathematics ... There are people working out such grandiose schemes of earning money in casinos that whole books are dedicated to them or films are made.
But such people are 1 in 10,000! And I think that only in the movies there are such people! It's all about luck, and that luck doesn't last forever!
Yes, there are such in real life, because its from somewhere, they take all this luck and schemes, and then they shoot a film on real events.