What part of "I don't like change. We have a routine." is so hard to understand? I have a 9 year…

What part of "I don't like change. We have a routine." is so hard to understand? I have a 9 year old, a 3 year old, and coming in August, a newborn baby. I explained this to the mother of the kids I babysit the day we met. But everyday is drastically different from the next. Kids are my world, but I don't know how much longer I can do it.