I think is not too hard to stop when losing in gambling. But due to much addiction have make most gamblers feel that if they continue to chase after losses that they would going to recover their losses in gambling, which is coursing them to lose more money in gambling. It's essential to understand that gambling depends on luck, having a limit and self control in gambling is always necessary because it will enable you gamble freely.
Addiction will only occur when the gambler tries to recoup the losses. and this is the worst thing, the player thinks that the next bet will recover his previous losses, but in reality it pushes him towards even bigger losses. Therefore, it is very important to set certain limits and maintain self-control, without these he will never be able to change his mind, and he will always only want to win and recoup the losses. Which leads him to bigger losses.