Many successful people have never resorted to Feng Shui but still managed to make a huge fortune so it can not be a fact that Feng Shui helps to find good luck in business and in gambling. In my opinion, the main factor in achieving a goal is persistence, self-belief and hard work. If in business you can negotiate with competitors and partners and change something, then in gambling you can only hope for luck.
If feng shui had any practical utility, then it would be applied everywhere. But mostly it is used as a means of psychological complacency. If a person believes that some actions will bring him good luck/are simply right, then he receives a charge of positive emotions, regardless of whether he is right in his belief or not. Thus, feng shui only works if the person himself is sure that it works. In a way, this is the paradox of self-fulfilling expectations.