Procrastination is the major challenge that is making some gamblers not to cashout when there is an opportunity for them to cashout, but they will not cashout, hoping that the game will not cut till they are willing to cashout, than to lose their luck at the end of the game. There is nothing, that will stop me not to cashout when the lucky hit me in the game because I don't know what will happen next if I say let me continue to observe the game, which something can happen later to turn the game to bad luck for me, greedy is another challenge that is making some gamblers not to experience lucky in their gambling because they always focus on big win before they can cashout, and it has made some greedy gamblers to lose their luck many times.