Go to pocketdice.io and claim free bitcoins. Then sart betting on 7x jut use the lowest possible amount if u win then juts play on 6x or 8x. If u lose them just multiply by x2 and start rolling dice until u win then u have made profit. Profit is slow but its free and time killer if u don't do anything like me... :p
One u have enough bitcoins just withdraw to ur fav bitcoin wallet.