it is difficult, how can you think of that? Most people lost money, a few earns, that's the real truth.
You are right, the people who are getting rich from gambling are the people who have big capital in gambling because even they are going to lose.
If they have a lot of capital for their gambling pleasure they can still win by the chance and possible to become rich.
But if you are only a small time gambler then for sure you have 1% chance to become rich with gambling if you are going to hit the jackpot.