Setting a goal is rarely working for people since every addict tends to forget and deny their goals every now and then. If you are determined enough you can try to set up a goal. But the hard part is keeping up with the expectations of the goal and following it meticulously. If your greed takes over then it no better than any other false promise. However it is possible if you are determined enough.
it might be work if we have discipline in gambling because without discipline, we can not reach the goals and we can often missed the goals because playing gambling is really tempting us to reach more winning in the next games or roll. if our greed is too big then i think its the time for us to prepare to loss the money.