My advice is for you not to believe so much in any strategy, the only thing I will tell you is to gamble just the little you are comfortable of losing and see how your luck plays out with any strategy you end up bumping into as there are so many of them, but there is no guarantee at all.

I would not consider it a strategy anyway, I would only consider most of them an easy way of trying to play safe and smart, but most times, being smart does not have anything to do with gambling as long as your luck is not willing to give you the winning you wish.