Experience it so many times even manage to double, triple or even more my capital, but ends up losing.
The problem is our greed, no matter how much we win if we couldn't control our greed we would just lose it all.
When you make a deposit, then bet, get a big multiplier and then use that money to get more wins, then you are digging your own grave. Greed in gambling is very dangerous. I think it is important for every gambler to get the mindset that in gambling no matter how many spins and bets you play especially in a casino or slot, in the end the house will win. A gambler's victory is when they decide to stop gambling. The casino does not force you to gamble and does not prohibit you. That is your own risk as an adult.
Indeed, the opportunity to win is when you decided to stop while you are still in green. The problem is, most of the gambler become greedy when they experienced some winning streaks, thinking that they can do it again and again not realizing that if they keep pushing forward the chance of experiencing losing streaks will follow and it will suck everything back.
Best to have that small earning then quit together with your initial deposit, gain the entertainment and experienced instead of keep trying to overrun the house then regret after.