Our chances to win under the situation is very slim, we can only win when we are extremely lucky. I have done this before, I gamble when I was drunk and unfortunately I was busted in less than an our, I realized I was not doing base on game plan anymore and I just follow my emotions whatever it dictates me.
The chances are not slim in fact if you play dice you could set the limit to almost 98 % win chance however you are not going to win everytime especially in long term because there is a house edge in every game, so realizing this people should just go with the flow , it is either you lose or you win big thats it
That's why the chances are slim because we are talking about long term journey, by setting 98% winning percentage every time it does not guarantee an automatic win but I agree we can win most of the time, but doing it all the time still does not give success as if it's successful we are already using that method and we become rich easy in gambling.