MIL anxiety. Please share some words of wisdom.

I have always had a very tumultuous relationship with my MIL. It boils down to me not agreeing with the guilt trips she puts on my husband or the expectations she has of him to take care of her. She's also made nasty comments to me, but sticks and stones. So, she's moved twice to try and be closer to my husband... and most recently, to be near our permanent home in NC. It really bothers me that she's in close proximity, I feel like it was sneaky and conniving to not even mention it in casual conversation. I can't shake the feeling of her purposely meddling in my relationship, or trying to separate my husband and I. And now, that I have a son on the way, I'm afraid she's going to interfere with MY new immediate family. I just don't think she's an honest responsible person, nor is she kind to me. (e.g. She's not called or texted asking how I'm feeling, she invited her own guests to a shower that my mom is hosting, threw an absolute FIT because I dont want her in the delivery room etc.) My husband has rose colored glasses on and I get minimal support from him. How do I shake the anxiety of her? I think about her sabotaging my life constantly 😔 I just want to live my life without the fear of her tearing my family apart.