I am so tired of this crazy lady

Not only does this woman think she can bother me while I’m breast feeding my son, she wants to watch me breast feed him, she wants to try and kiss him while I’m breast feeding. I’ve always had problems with this woman but ever since I had my baby she tries to take over and steal him away from me. I love the help but if I’m not asking for help don’t bother me and my time with him. We live together so it’s hard to get my own personal space already, but she always tries to pop in in the middle of the night as soon as she hears my baby. Trying to ask me if he’s up and to take him when obviously he just wants to drink some milk and go back to sleep. It’s so annoying because she gets in our bed, trying to talk to me and wake me up, moves the blanket and has no shame of being in my personal space. One time when she was getting him she had her whole chest on me, her tits and everything just on me… I grew up in abusive broken household. I’m not use to being so close and dealing with people who can’t respect boundaries. It’s hard because I want to say something but she is just so sensitive. If anyone cares to read this how do I nicely say “stop bothering me” without her completely getting upset. I miss being able to close the door but our air conditioner went out so every little noise she can hear. It’s not that her helping is bothering me it’s the personal space and respect of me being a new mom that she doesn’t understand. And please don’t get me wrong she is great at helping me with my son, I just feel like she’s trying to be too great at it by taking him from me in the middle of the night and being over my shoulder all the time.