My grandma is visiting for 6 months and the whole time, she's been bossy and mean. Whenever I have my hair down, she'll demand for it to be put up. She thinks it's in my face, but it's not. Once, I told her that I liked it down, and she said "I don't care, I hate it and I don't feel comfortable being seen anywhere near you when it's like that". She says something like this every time I try to disagree with her. Occasionally, I'll sit with slightly bad posture and my grandma yells "sit up!" at me and pushes me hard in the back or pulls me by the head until I sit the right way, according to her standards. Every once in a while, I'll make the mistake of not doing something right (cleaning something, not fast enough). She'll yell at me "I thought you were smarter!" or "I know you can do better than that". Another bad thing is that she tells me what to wear. For example, I'll put on a blue shirt that I love and she'll comment "I don't like that, change it right now". Someone please help, I honestly am going insane.