AITA for confronting my sister for using my personal hygiene item?

I’m 24F and live with my Sister 18F and parents, warning: this is pretty gross.

My sister is selfish, spoiled and entitled. My parents brought her up differently to me which probably explains the way she behaves the way she does. She has always had a habit of taking and hoarding everyone’s else belongings no matter it be clothes, food or personal items, she’s taken stuff from me in the past and refused to give it back just because she doesn’t want to.

I noticed my loofah/body scrub was missing from the bathroom, this is a product I use to wash my whole body including my intimate areas. Later I found it in the downstairs bathroom and knew exactly who could have put it there, Now I know my sister doesn’t care about basic hygiene or germs, she barely bathes and has gross habits like leaving her used tampon applicators all over the bathroom floor but I thought taking someone else’s body scrub that was obviously not hers was crossing the line but nope.

I asked her what she had being doing with my scrub, and she told me she washed her face with it🤮 I seriously wanted to throw up there and then. I told her that it’s mine, I use it to wash myself and that it’s disgusting and she wasn’t phased at all, she told me she doesn’t care that I wash myself with it, doesn’t feel grossed out and that it’s ’not that deep’. I asked her what’s wrong with her and told her to respect my boundaries and not take my things especially personal hygiene stuff because it makes me very uncomfortable, she told me that she can do and take what she likes and will continue doing so, I did try so hard not to get angry but she really riled me up. The argument ended up escalating and she started throwing stuff at me and threw talcum powder in my face, I didn’t throw anything back, I just sat there but I did say some mean things. She told me that she hated me and told me I should just fuck off as she wants me gone and so I told her that the feelings mutual and I also called her out for for her gross habits.

My parents intervened and were mostly angry at me for starting an argument and saying I intended to cause trouble when I didn’t. I’m just fed up of my boundaries never being respected and not being able to have anything for myself, not even my own toiletries which I now have to hide but shouldn’t have to. I wanted to have an adult conversation about it, I didn’t know she would be so stubborn and lash out, it’s like my parents are making me responsible for her emotions. I know I could have handled things better and ignored my sister when she was saying hateful things but her dismissive attitude was just so awful, it got me so mad.

My sister and I have cut ties now over this, she wants to and I’m honestly not fussed because I can’t put up with her behaviour. I know a lot of people will tell me to move out, the economy and cost of living is terrible in my country but I’m working on it!