We know that winning in gambling is like a dream coming true but if you win and the money is in your account, why not cash out the money and do something else or invest somewhere rather than playing again with it and again putting the money in risk, as when you gamble again you again have a 50-50 percent chance of winning a losing a game / bet.
Gamblers think that since they have won recently in gambling, they will keep on winning and make more money. This is called greediness and if you are greedy, then you cannot achieve financial success.
I agree with you because that's one of the challenges most gamblers normally have because they are always positive all the time even when they are losing, they always believe that one day will be there turn and there is every chance they will surely win big so they keep on gambling.
So you are right because whenever a gambler wins a gambling it triggers there mind to gamble the more because he will be feeling that for him to have won the first game means that he will surely win more, that's why is mostly advisable to always cash out some of our winings from our gambling platform because leaving it there will always affect there gambling judgement by making them to use all the money they have won from the gambling to stake it back to gambling game.