I think there is no secret, the ideal strategy is the one you only do once and do not repeat it anymore, since Blockchain-based games have high-level algorithms, I have usually discovered that you earn more with the random than with the studied . This does not mean that the strategy does not work, if it serves but not to the point of applying it every time you play, the patterns, the routines are easy to record for the algorithms, the random thing is not, it is like Game theory, almost nobody understand, but it's something like that. Sometimes randomness accompanied by luck will make you earn more.
I've found myself that there's no secret to this. After all, most gambling games are based on random theory, where everything is just pure luck. My best bet would be to invest into a casino's bankroll and forget about it. If the casino is very popular, then I could easily reach a ROI within a couple of years from now. It's much safer doing this, than directly playing gambling games with the hopes of achieving profit within a short time frame. Only skill-based games would give you a better chance of winning, if you happen to master them. While Blockchain-based gambling games prove to be much fairer than traditional ones, that's no guarantee that you will always win.
However, if you still want to have fun playing a gambling game, then I'd suggest that you use faucet earnings for that. Some online crypto gambling sites provide you with such feature, allowing you to "bet" all you want without losing or earning money. This is the safest way to go if you're only looking for fun. But if you're looking for profit, then I'd suggest that you look elsewhere. Gambling isn't for everyone as it's highly risky. If you make a wrong move or decision, you could lose it all within an instant. Just my thoughts