The best way is to avoid gambling then you win to save your money and house also will not make any profit.
As others already told you there is no way you can win money from these games. These games are designed to give you thrill and excitement, not money. If your looking for making money then gambling is not the place for you.
When people say the saying the house always wins they are referring to The house edge. Some games have a little, one being European roulette and some games have alot like slots. The point is that all games have a house Edge and theres just no way around it. I would recommend switching over to poker.
In poker game also you need to be lucky to win all your games another wise no.