One of the most important factor of a successful gambler is to know when to stop, most gamblers expecially the addictive type don't even know what is stop when it comes to gambling. So it's very important to;
* Stop when your losing is now getting to you.
* Stop when you are now feeling as is you can't do without gambling.
* Stop when you have a big winning, by channeling the money somewhere else so you won't lose it back to gambling.
* Stop when you are not even winning at all, it's not your thing.
* When your losing is weighing you down, stop and restrategize .
I think it is very important to stop when losses begin to grow very strongly. After all, emotions can deceive us, but facts will never deceive us. When expenses begin to exceed income many times over, this is a very bad sign.
I would also advise beginners to never gamble with money that you cannot afford to lose. That is, you cannot touch the money that needs to pay bills or feed your family. Moreover, you should never borrow money that you want to bet on a game or take out a loan. These are the main rules
If we are talking about gambling, expenses must exceed income most of the time, and things will still be very normal, but then, there is actually a level that a gamblers loses can get to, it becomes a red flag, which is why it's important for gambler to always recognize the size of their pocket as well as their bankroll, and always set a stop loss for themself, just incase of bad days when luck seem to be saying no to them.
One thing about gambling is that, winning can never be forced, and so is losing, so, for the person who is experiencing a rather long and abnormal losing streak, it's better to stop than continue playing and end up feeling to bad due to the outcome of the game, winning in gambling was never meant to be a do or die affair.