So my question is - How much winning is enough for you in a day. You're answer should be based on your capital not on your multiplier. Also how much is it for losing?
I don't consider how much I win or lose, but I measure it based on the amount of money I have allocated
daily. And the allocation of money for gambling can be different among the gambler, it is probably depending on individual's income. So, I'm sure there is no an exact amount of money. Ideally, each gambler has an allocation of money for gambling daily, weekly, or monthly. We just stick with the allocation. If the allocation of money for that day has been over, I personally prefer to stop and continue it tomorrow. Even I can win streak and I have good feeling at that day, I won't try to be greedy and add more money to gamble more. However, this is my principle, other gamblers may have a different gambling principle.
It seems to me that the gambler will never have enough winnings. No matter how much he wins. Every time he will want more and more. Another portion of winnings.
This means greedy. Sure, if a gambler becomes greedy, he will always keep playing even if he have won several times. In many cases, this ends up with severe losses (including OP case).