There are no real strategies for Dice. Its really difficult for people to beat this game and its totally depends on your luck. You have to be lucky then only you can win some money or else there are maximum chances of loosing the money.
You're correct , you can't just beat the house easily unless you have tons of luck or you'll exploit the site
martingale 
Yeah it's a good stategy in dice , especially when you just want to lose your coins
It's proven and tested as a good way of losing your coins