You're making me cranky...

I am trying to get Emily to head upstairs for bed. She is finishing her puzzle that she has done a bazillion times today. First she tells me "Mom, you need to help your daughter" and when I come to help her (I mean rush her along) she tells me she wants to do it herself and I am making her cranky! So I continue to help and then she tells me "Mom, you can help me but you are still making me cranky!"