Actually gain from gambling will depends on what people think about it since if you are aiming to change your life and gambling is the only one you think can make this possible then there's nothing will really happen to you. But try to see on other side of the coin since if you make gambling as your stress reliever and you have control all of things on it and be satisfied on what you play then you are gaining something with it since you are on positive end.
When someone is completely addicted to gambling and when gambling completely consumes someone, his mindset is that he always thinks that gambling will change his life and gambling will make him a big rich. But something like this never happens, the opposite always happens. And slowly gambling destroyed every hamblers life
Now people are more attracted to gambling. No one knows how many people's lives have been ruined by this gambling. But we can stay away from this gambling if we want. For that we have to stay away from the gambling games. Gambling makes people happy for a short time, but later it is seen that they have to spend their lives very hard.