Mom putting a camera in my bedroom ...

This was when I was still living with her I’m with my dad now but after my parents divorced my dad asked me to stay with her so he could buy a new house and furnish it and then I could move in with him. We didn’t tell her but she was really happy that I chose to stay with her though she still but didn’t trust me and put a camera in my room without me knowing in case I said anything about wanting to stay with my dad. I said it one day and she yelled at me, slapped me and took my device and shit. She then talked about how she carried me for nine months and she could have killed me but I’m alive rn. I thought she had the right(putting cameras in my room) as she was my mom and it was her house. After I left her house I told my dad and he told me that it’s not normal at all...