Gambling is all a trick. People think that because they can make money quick and that because they have a strategy, they will be able to beat the dds and that is just not true. To many people I know have wasted so much in gambling and have nothing to show for their mistakes.
If you can trick on gambling the result maybe lose again no one gan bet gambling websites and off course they are making money for every people who are playing with it if you want really quick money then rob a bank there always a quick money there in gambling there are no smart strategy and you always get lose.
Making profits and aiming for stable income on gambling is not possible as you said we cant trick the gambling house itself in fact they are tricking us to make money and thats the essence of gambling site at all since it was an investments of the owners and no owner would intend to give free money. Strategies are not possible on this kind of field.