Gambling is all about luck and as we all know, luck may not always be on your side. Many gamblers know this but others are too weak mentally to acknowledge that they have lost their stake.
It is also crucial to understand that if you are experiencing a winning streak, it is a good idea to be careful with how your stake. Some people get carried away and end up staking all their big wins only to lose everything.
It is always a good idea to know when to stop.