I wouldn't place my bets on those new gambling sites. I am not into trying out new sites and give feedback if they are good or not. Let the others spot which gambling sites are fixed or gives a sh*tty service, but for nowlook at those that are online for more than a year and received positive feedback.
It is good idea not to play in new gambling sites. Much better idea is that never play online gambling. There is no fun and entertainment in online gambling. Most of them are scams and you will always lose all your money there. If you are an addicted gambler you should visit regular casino for gambling. Atleast there are no scams and the games are not fixed.