1) we need good & safe gambling site;
2) then we transfer some altcoin - for example, Doge for fast transaction, let say 500 000 Doge balance.
And now we can do something for nice win ? I think for fast win, we can make chance of win 49.95, with double bet, when loose, and starting bet 1 Doge or 0.1 Doge, in manual mode. So after 5 minutes, in one or two sets we have nice win, so transfer your Doge balance with win back to your wallet !!! Congratulations !!!
You seem to be the one of early phase gambler, don't worry you will eventually have your doubt clear in phase two when you will lose some(or more) money. there is nothing like golden strategy in the games based on chance especially in the long run you will run out of the road. apart from that, I suggest you switch to poker which is more skilled intensive then dice rolling.