Family members driving me insane

I walked in on my aunt giving my baby candy after I have told her twice before about giving her candy & soda. She tries to argue with me about why it’s okay to give her these things. Then she gets mad when I don’t let my child go around her. I don’t ask my aunt to watch my daughter at all she asks to see her and the max I allow is 30 minutes because they are pushovers and always down talking me & her dads parenting because we refuse to feed her junk food & soda. She’s 7months old!! The last time she gave her soda my baby was throwing up & it was coming out of her nose and she was crying. When she sees me feeding her baby food and mashed fruits she starts making remarks about how much my baby doesn’t like it blah blah blah. At this point I’m just really about to not even let her be left alone with her. We are staying with her while we’re waiting for our place to be ready & it’s driving me insane because when I say ANYTHING about what she’s doing she wants to argue with me like I’m dumb and talk to me like I’m a little kid. Then as soon as she comes home she just stands in the room we’re staying in to watch what we’re doing with our daughter & then tries to take her. If I leave my daughter in the room while I go run to the trash can she comes in & takes her. This is the first time my daughter has been around anyone from my family for this amount of time & im really regretting the decision of staying here. Our place is taking too long. My therapist thinks that I should just suck it up and deal with it until my place is ready 🙄. My boyfriend has gotten into arguments with them because they always have something to say about anything. we are more than respectful to them. we pay their light bill , provide our own groceries, & keep the parts of the house we use clean. I really don’t even know what to do!