My biggest win was $1000 that was two years ago I cannot even consider it a good win because after the next few days I also lose more than that amount, thinking that I can win again and even double that amount I was devastated I resort to chasing my loss, you can hardly remember your winning when you lose a lot, but losing will make you a more controlled player while winning can temp you to bet more.
That means the biggest wins you've got in the end lose more than that amount. If you don't gamble again after a few days, you may still enjoy the big winnings. And that big win can indeed trigger you to return to gambling because you may think you can get another big win in the next bet. But the reality will not always be the same as what we think, so this is where it is important to have the self-control not to return to gambling after getting that big win. But hopefully, you can get another big win in the next bet and immediately stop and not gamble for a while and not be tempted to go back to gambling.
Some people believe that the luck they have in winning a game if they go back to play again they will still have luck to win again. If he had enjoyed the money he won for some days and went back to play the game he would not have lost so big. It seems after he won he went back to double his game, that is why he lost more than what he won.