No gambling is "safe". Where there is money, there are always people scheming to snatch it from you. I had a career as a pro poker player in a former life, so I can't tell you that money can't be made. You need to be really, really good at it and then there is still the chance your luck will run out and you get clobbered. You always keep a bankroll in reserve; just in case.

If you enjoy the lifestyle of a professional gambler, you might make some money. But keep in mind that many try and fail. I would suggest you read the biographies of top gamblers like Stu Unger to get a feel for how their lives go. Here is a video documentary about Ungar: