I have the same case , I give her one month notice before the contract end, but in this month, I was trouble, she don't listen to what I ordered her to do, go out whenever she like, have afternoon sleep every day with air-conditioner on. I haven't notice she turn on the air conditioner before I told her that I don't want to re-new her. When she feed me child (2 years old) , she just said "you don't want to eat", then give up. My child's main meal become "ALL MILK"............
Just don't let her know as late as you can , otherwise