Chasing losses has been the best example that suits everyone's situation including me. I try to chase my losses and sometimes even double my portfolio, but greed never lets me stop at that point and I decide to gamble further and when I get under my capital again, I try to chase my loss with higher bets and lose all of it.
I reckon that I mentioned this to struggling gambling players about the cycle of winning/losing.
The problem with a winning/losing streak in gambling is it creates this illusion that a player must continue in order to win more or to recover his/her losses. In such circumstance, the player risks again himself and believes the fact that he may win again or recover his losses. However, the more you gamble, the more you increase the chances of putting yourself at this kind of cycle.
Gambling must be paired with discipline and self-control. The more you gamble with the mindset of recovering your losses, the result will most likely be you, losing more than what you expected.