I've had plenty of success with the Martingale strategy on the Auto-bet option on Multiply BTC. Set ON WIN to Return to Base Bet and ON LOSE to Increase Bet By 50% (although martingale requires doubling) and start. Unless you're VERY unlucky, this will garner you consistent gains. But here's something you have to take into account: have atleast a 100,000 satoshi balance, and start betting with 5-10 satoshi per bet to minimize the chance of losing everything at once.
Looks like you just started to play dice, martingale on auto could bust you in no time if you have a balance of 100,000 Satoshi. I used to play a few years back with one bitcoin and yet busted many times playing auto and i even tried with 1 to 2 Satoshi and still busted so the idea of winning with the martingale is just a dream, play manual and that is where the fun rather than staring at the monitor dreaming that you will profit

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