I do not think that using math or other predictions you can win in gambling, and especially in roulette. There everything is designed for pleasure, not profit.
Yes, that's true. Even if you are very good in math, it will not help you to win the gambling game because in gambling it does not depend on how you play it. But it depends on your luck of winning. If you are really lucky on that day, then surely you will win but if you are not lucky, of course you will always lose the gambling game.
I don't agree with that, maybe we can give an exemption on luck based games as the name itself it's only based on luck, but the reality is there are people who are profitable in gambling so it's not possible to be in the same position they are enjoying. If we are good in math and we develop that then I believe we have a chance to win if we will play gambling which is skilled based games, of course there's lot of its kind but you have to focus only on one game.
Yes mths and calculation can be helpful but only in some formates of gambling. We cannot depend on our calculation, experience and trading skill, because in some gambling games we need our good luck where we totally depend on our luck. For example in slots and dice gambling and in lottery we are totally depend on our luck and our calculation cannot play any role there. While in sports gambling there we we need to have some calculation and knowledge about the teams and their players if we want to get the expected result from sports gambling.