If you are a high roller you can definitely make a profit from gambling on dice while having fun if you playing for the over 80% win chance
It don't think that method or trick will work always. It might have given you better results sometimes due to your luck, but if you try same again, then you may not get the same result. This game totally depends on luck, not on any method or tricks. Whether you roll high or low, the result will be same. So I always play this game for fun and not for profit.