well.. martingale works always but it depends on your balance and of course on gambling site

if you have good bankroll management it and play trusted Provably fair gambling site it will work

but its always to invent some good your own strategy (depending on Site you play)

good luck with it mate

You are wrong. Martingale not always works, yes it works sometimes but when the long losing streak comes it will bust your bankroll for a few satoshi return by your basebet
i said martingale works not your bankroll is not enough

finally when keep doubling your bet i get profit and if u dont have that amount its not martingale system problem mate

its your bankroll prob or gambling site issues

system is simple after 100, 1000, 10000, or 100000 or even 10000000 try u will get back your full amount of bet + the amount of first bet