Angry, what to do now?

My nanny said (In response to me calling her out on being quiet and wanting to get out of the house quickly after her shift) that she can't tell me how she feels as everytime she does, she feels I 'tell her off' or 'Put her in her place.'I am so angry.
She has been annoyed as I haven't put a proper schedule in place. I haven't because I am having a very tough time with my upcoming divorce and trying to keep a settled home for my child. Yes, I have a partner and we do lots of fun things but I have a lot to deal with.
I know she has crohns and needs to plan ahead but think she has been unnecessarily unfair. She said I have not seen this from her perspective and am putting all the blame onto her and I said it wasn't about perspectives it was about honesty.
She was there for me at my worst and my kid adores her. But I am angry at her. Who else agrees she is acting like a child?