Gambling requires strategy but it must be modified as needed. Applying the same strategy is unlikely to produce the expected results. Also, since it depends on luck, the strategy may not work very well. It is good if you can make your own strategy, but other's strategy must be well researched. How reasonable that strategy is should be seen at a loss. I think in some gambling 50 percent win based on luck and 50 percent depends on strategy and your intelligence.
So you think that there can be profitable (non-profitable strategies are not the subject of discussion, since obviously no one is interested) strategies? It seems to me that if the bookmaker/casino has not made a mistake anywhere (in the software, in the set odds, etc.), then no strategy will change the fact that the advantage is not on the side of the player.