Covered our caregiver's day off with our 4 month old. Nobody told me there was a system

Our caregiver took her first day of leave today and my partner had to be in court, so it was me. I have been present for all four months. I assumed I knew how things worked. Apparently the burp only comes if you walk to the balcony door and back. The afternoon nap needs a particular hum, which I do not know, and which my daughter made very clear I was getting wrong. The bottle goes in at an angle I can only describe as specific. She was fine. I was finished by 3 pm. Tomorrow I am watching the caregiver work and taking notes, and she has agreed to this with what I think was a smile.