gamblers sets aside their emotions when they are gambling, gambling = risking, that means everything that we win or put in our balance would probably be busted in the long time..
Gambling is always a risk and there is nothing to do about that but there is a chance you will make profit in a long term but indeed mostly not because you will need luck.
Gambling is all depending on luck so its almost not possible, and its also what you consider as a long term.