When it comes to slot machines, it's virtually impossible to come up with a real strategy because they operate on a fixed algorithm. And even if you somehow managed to understand that algorithm , which is highly doubtful and unlikely, it still wouldn’t allow you to win consistently. So building a strategy around such games is a myth and self-deception. I can confidently say that not a single millionaire has been made this way, except the casino itself. The only real strategy here is to clearly define the amount you're willing to spend on a game of chance. If you're lucky, you win. If not ,well today just wasn't your day.
Yeah, I'm very aware for this, that's why I'm not looking to double my money on gambling because the result can manipulated even on sports betting but if I think that too much and afraid in losing money then I won't get any fun when I play the game. Now I know why gambling is not for everyone, lower the risk and lower my expectation in getting win streak is what I'm doing before gambling.
I like the way you approach gambling before you start, which is reducing risk and lowering your expectations of winning. For example, by only betting small amounts or amounts you're willing to lose (reducing risk) and lowering your expectations of winning to avoid mental and psychological distress when the outcome doesn't match your expectations. That's how gambling should be done.
One reason I like your approach to gambling is that in most cases, gamblers often become emotional, become aggressive, make decisions blindly, and become trapped in despair at the end of the game when the outcome doesn't match their expectations. Of course, they certainly didn't bet with an amount they were willing to lose in the first place, and they likely had high expectations of winning.