one known method accuracy in gambling it is either not to play at all, or play with money that can afford to lose and not to be negative in the case of a loss, but need it to decide for yourself, otherwise doubts may dispel resistance and to be able to lose all your money, but to play a cowboy for resistance is very difficult , because there will come a tired and weakened concentration that will lead to a loss if to talk about BlackJack, one-armed bandit is easier with him of the conditions there probably better way to stay in the small stakes and not to risk large
Yeah playing with control of your self and the amount you are putting at stake are still the best strategy out there.
But still you need to look for a game which do not use luck purely and uses some strategies and skills also, so that you will gain more and reduce the risk of losing when in a long run of winning streak, try a games like poker, where you need to use your strategy out there to win.