Ladies I need you help 😞

Try to sum this up short. My mother loves my LO. She wants to be with her all the time. I'm fine with her watching her, but after many exhausting attempts, she doesn't listen when I tell her LO's routine or how she likes things. All I hear back is "I raised you didn't I". I get that, but we are all different and have our set ways about us. 
I have a surprise dinner to go to for a friend tonight. My DH is trying to make sure he's here before I leave. If not, my mom will be in charge of bath/bed. LO is on a GREAT, easy bedtime routine, and sleeps good. I don't want to mess it up. But I just know it will if my mom is in charge. They are loud, slam doors, and act like they can't hear the tv, so they then it loud. Yes, they are getting older. 
For some reason, I'm just stressing on this so much. Almost in tears, if I should just stay or go. Maybe I'm a nut job?? Lol I don't know. Just love my LO so much and love seeing her happy and fall asleep after we read her story to her. Don't want her to be stressed or thrown off routine if something goes wrong 😟 
Tell me I'm not alone. Or if I'm crazy 🙃