I licked all of the cookies
That is not a sanitary thing to do. Were the cookies for everyone?
It was the pack of cookies from the kitchen. I think it's the devil's fault that I did that.
It's pretty gross to contaminate an entire package of cookies with your germs. Other people in your household will be upset when they find out the cookies were licked. Buy your own personal package if you want lick all of the cookies.
No, I'm sorry I don't need to do that.
I believe you should be more forthcoming about what you did with the people you live with. It's rude to intentionally leave your germs on a shared package of food. You don't want to cause anyone ill harm.