It’s a fact: you’re an adult. You know you’re an adult. Everyone knows you’re an adult, everyone accepts that you’re an adult. The only person who disputes this fact is your mother and that is because a room in your home is dirty. She’s just gotten in from an early morning, late night, whatever and what she was willing to ignore due to fatigue earlier, sleep has recharged her lecture batteries. At this point, you have two options. You could kick/usher her out as soon as she wakes up. I wouldn’t personally recommend this. First, when your mother is angry, everyone in the household knows it. (Why do that to your father?) Second, if your mother is anything like my mother, she’ll eventually get you back for that one. My mother’s wrath is like a poisonous spider hiding in your shoe, you literally step into it and it’s devastating. So that leaves you with one other choice: make her a breakfast that will shut her up.
This will take you forty minutes. Tops.