It's pretty exciting, making a successful career in gambling. If what you mean is to make gambling a basic job to meet the needs of a day-to-day life and hope to live a successful life and have a lot of treasure, I think it's very difficult.
However, if you expect big gains in gambling, like you win the lottery or get other big wins, it's still quite possible. If you have a lot of money, maybe you can make a gambling site. As a gambling site owner, maybe this can be a promising profession.
Taking up gambling as a profession leads to a precarious life as a career in this profession does not bring regular income. If there is no regular income, it will not be possible to support the family, moreover, it is not the regular profit that will come from gambling, but if one day profit will be lost for two days, then there may not be enough money to support the family. So no matter how many chances there are in gambling it will never be possible to build a career in gambling.