It is very rare to see people become wealthy in gambling and I believe those who are rich in gambling does not have emotion or knows how to manage their emotions, they treat gambling as their business, and they track record of their winnings and especially their losses. I think that is how the professionals do it and only if you are a professional, you can become wealthy in gambling unless you are that lucky guy who wins in a lottery.
I see some who is successful on gambling. They have some strategies where they dont tell to anyone. besides, lots of people lose on gambling because we all know that gambling houses has an edge where they have it for a reason to have a higher percentage of winning on the players.