Gambling should never make you cry unless you win a huge amount of money and you cry because you are happy then you are allowed to.
But you should never cry if you lose with gambling because you should just accept that fact and move on.
While that would be nice, that is more the exception than the rule I can assure you that for every single person that cries out of happiness there are hundreds that are crying out of sadness desperation because they lost.
We all know that it is hard to win against the house edge, so it wont be surprise that for every one people crying for happiness, there will be 1000 or even million of others that is in deep trouble or sadness that they are gamble way too much. Some even commit suicide.