The worse thing that you can do is to promise not to gamble before you plunge into the game because it will be broken after you win in a gamble
promises and gamble do not work together and every compulsive gambler have already made a promised thousands of times before they always break that promise.
I agree, well as what they say promises are meant o be broken. I think it is best to break that promise if in terms of gambling because in gambling you don't always win, you're one of a kind if your always winning - its not good to hold on to that promise of not stopping in gambling most especially if your on a losing streak because you might lose everything just because of the promise. It is okay to gamble but please know your limitations and always have self control.
If you will not place any limitations time will come and everything will fall apart, it's just good since you are still in the winning side, but when everything doomed you and most of your savings already been wiped, regrets will be the only witness of your failures, better to think about that promises and setup good limitations, everything should be place as your entertaining practices.