Maid of honor taking over

Absolutely not. You need to tell her to back off.

Gently tell her you have everything under control and can handle it from here.

For what it's worth, given that you're less than a month out, she probably feels this is what she's supposed to do. Tell yourself your MoH is coming from a place of love and have a talk with her.

If she is already married, maybe she has some perspective on how stressful the last few weeks get and is trying to help you avoid that. Whether she's married or not, I'm sure she means well. Just tell her you've got it and will let her know if you need anything. Haha or maybe this is a perfect case of give your bridesmaid some tasks so she has some responsibility to handle and can direct her energy there! Lol

I'd stop giving her details. She really doesn't need anything more than be here at this time. What exactly isn't she liking and how is she making you feel like you don't care about your own wedding?