['I buy a lottery ticket every day but for some reason I have not won more than $10. My luck will soon change!', 'Well You can be hopeful. But i think you should  stop gambling', "No, I am pretty sure I will be one of the lucky ones who hits the jackpot. It's not gambling if it is a sure thing!"]
If it is sure then you do not need luck
I keep playing the lottery but have not won anything over $10. I know one day I am going to hit it big!