I do not relate luck to gambling because it is so much evident that the games and odds in gambling (but odds betting) are programmed in a way that gamblers will eventually lose. Gamble more and lose is the reality. Win and do not gamble for that time wise decision. Also with the little amount of money I am using to gamble, it is like that because there is nothing like luck to me in gambling. Most people will lose while 1 out of thousands of people would win which are the lucky ones. I am not saying there is no lock in gambling but understand what I mean.
Obviously is luck is just something we all try to believe in so as to help of look at the brighter picture. No one is 100% sure that anything we do in gambling is related to luck but then we are just putting faith in it. The games were meant to give the house an edge, that's why most gamblers.
Loss More compared to winning. But then we can try our best to enjoy the game even if we are losing and over time we might see something reasonable from our endless losses.