I believe that they are many people that are making money through gambling and we are not all losing in it. I have had from someone here that he makes about 50bitcoin from gambling in 2018 and I also have seeing many people complaining on how much they have lose in gambling.
I have not even heard about such won amounts. And I can not believe these numbers. More often it is possible to hear that people lose in gambling. Therefore, if you managed to win, then you need to stop and exit the game.