Everyone needs luck. I won't agree with OP at this point. In a casino you should depend on luck; in betting you should have experience, and luck should favour you as well. When you are gambling, then you can't exclude luck anyway. When we can't predict anything 100%, then of course you are depending on luck. I am not saying you don't need experience or strategy. It does help risk management, but it won't help you unless you are lucky.