bet low... slow profit but low risk
Still not possible to remain safe.
Even constant losses will get you nowhere. I have played dice with 1.01x and lost many times, this shows that luck plays the most important part in gambling.
Actually this kind of strategy work for huge bet although sometimes it doesnt work but still worth to try, for example using 1 btc to earn some still pretty good enough but dont be too greedy, because most people doing this kind of strategy they thought it wont be lose but it will later if you play too long