To be honest, when I play at the casino, I only play for fun and make small, consistent bets
When I bet on sports, mostly soccer, I don't look at the luck aspect
I do my analysis, look at the odds, and see if those odds are worth the risk and return
Obviously, luck is involved, but it's always good to do a thorough analysis to increase your chances and maybe have more luck, hehehe
I don't usually play games with very low odds because the return doesn't end up compensating for so much risk.