Casino gambling generally isn't a good way to make cash. Online casinos stack the odds against players by implementing house edge tactics. The longer you play, the more likely it is that you'll lose money. The house edge does, of course, vary.
Winning big sums of money at online casinos is indeed possible, but it's important to understand the odds and the nature of casino games. Here's how such wins occur and their frequency: High Variance Games: Big wins often come from playing high variance games like slots, where payouts are infrequent but can be large.