Greed is always the worst enemy when it comes to gambling. Many people who lose money in a game often have the belief that they can recover their losses by playing more. However, they often end up losing even more money in the end. On the other hand, those who win a huge amount of money but continue playing without cashing out can also experience regret due to their greed.
Personally, I don't gamble so often but when I sense that luck is not on my side, I choose to quit quickly to prevent further losses.
Greed is a monumental character flaw which can destroy a person if they are unable to control themselves, as out of greed people can take all kind of risks and even perform some illegal activities that could get them in jail, however now greed is not seen with suspicious eyes and it is even considered to be good by many people, so it is not surprising that more people than ever are falling victims of their own actions and they are losing everything they had simply because they could not be happy with what they had already.