Earning money is real hard and it's a no-brainer. So basically what I do is I write down in a diary of my daily income along side with what I have sacrificed for earning that amount.
It is really hard to earn money by this time so seeing your money being lose in a gambling will definitely hurt you a lot. You know what, it is not really a bad thing to gamble but just do limit the time of gambling. Dedicate a little amount of money that you are afford of losing and ofcourse a discipline in yourself so that you will not be so addicted to it.
Yes, it is hard to earn money, especially in gambling, because we don't know when we can win and get the money. But yes, we can play gambling without expecting to win in the games because we know and realize that it is not easy to get the win. And if we can control and have discipline in gambling, I am sure that we can manage our time in gambling so we can enjoy the games because we don't have a reason to chase the win.