I'll leave my simple technique here and I'll hope you guys can leave some more!
I often use the stake doubling technique to several games. I normally do this with dice games and if it played correctly its profitable. What you have to do is simply start with a small stake and every time you lose you double your steak until you win. Once you win, you will recover all the amount you lost. This works if you have enough money to keep doubling your bet, so you should do your math and check with how much you should start. It is not infallible but it works.
but like you when there are times that I need to play but something come along? yeah I also set up auto bet for that certain time specially when Luck is in my side but i have nothing to choose but to go on the emergency .