Gameblings are different, if we talk about a casino gamebling, the best for you is not to gameble at all, because casino always win, everybody knows it but not everyone can use this knowelege 
This is not true, casino only wins if you keep playing with higher bets and high odds. If you are playing in probably fair casino than they can't rig their results to make you always loss. You might loss more in the casino with high house edge than the one with lower house edge.