It is totally impossible that you win gambling without any lose. any person who go to the field of gambling have to remember that there are 50% chances of lose and 50% chances of winning the game.
50-50? That is not true. Maybe if you find casino with 0% house edge on dice and you bet on 2X than you will have 50-50 chance. And that is one big if.
It's 50-50. Higher chance - lower payouts; lower chance - higher payouts. If you go for low payouts, it's going to mean more bets which means more times you can lose or win, but in the end it's the same result.