I use martingale strategy it is easy but high risk.. need big bankroll

I don't know what is the best strategy..
There is no easy or shortcut to earn money. You should work hard for it. Martingale method works may be a short time, but if you play for a longer period, then it will work for gambling house and not for gamblers. So there is no working method available in gambling to earn money
short term plus your big luck the only strategy that will work the sorter you play and with small amount of winning that you will be
satisfied the better to exit the game in that particular way you will win but if you got greedy for sure house will beat you and start
to collapse and burned everything.