MIL is driving me crazy!

How do you guys put up with your MIL?? This is the first time she is staying with us and she is driving me absolutely insane! "Leave her! Stop picking her up!", "you shouldn't hold her like that", "she's too little to do tummy time", and then she tried to give the baby her bottle and my daughter was screaming and she was pushing the bottle in her mouth... That's not going to work?? You need to calm her down first and then try again. Omg I need advice on how to put up with her.