I once made a lot of money from trading crypto, not from gambling, although I feel like they're pretty similar. I understand that feeling back then, being overly greedy and thinking everything was a piece of cake because of my previous success. The outcome was that I ended up losing most of my earnings. Now, I'm working on dealing with both big losses and wins. I'm taking breaks to help me regain my perspective.
But making money through trading is technically possible, while gambling is technically impossible due to house edge. You can make a lot money, but you must the casino owner, team or the promoter, not become the gambler.
Even there are few times you won in gambling, it's not enough to cover all of your previous losses, which mean in the end you're losing.