When you start losing a lot of money and in a successiv way you have to know that it is better for you to stop and look for another way to earn money. I think gamblin too is not the best way to earn money because it is based on luck so we have to find other ways to make a good income.
Yes when the losestreak already hit us, then that is a sign to stop. When we lose a lot of money, then it's also a sign that we have to stop, at least stop for a while. Do not force your luck and keep betting even though luck is not on your side. You should be able to stop yourself because if you are too muzzle, your money will be more lost.