Any strategy without luck will not work, luck is a important fact in gambling an even the worst strategy with the right luck can have a happy end.
Personally I like to get stuck in the same strategy until a good win comes, after that I switch to a New strategy.
What's the point of strategy if you want to rely on luck? Or, to rephrase the question: what's the point of luck if it won't matter in the long run? Let's say you are lucky once, twice, ten... even a thousand. But in the long run there will be no luck (as well as unluck), it would be strange if, over a distance of thousands of games, aces, so to speak, came to you significantly more often than to other players. The essence of the strategy is precisely to remove factors such as luck, chance and the like that we cannot control.
The right word for this is probability or chances, a good strategy should have at least a good probability since gambling is just a game of probability. Luck is just the bonus part of the probabilities so having a good chances can increase your chance of winning. A strategy without a good probability of winning is just useless, maybe relying on luck is more profitable than having a strat with low probability. Luck is there but relying luck is not really a good practice if you want to stay in gambling.