Does my mom have paranoia? help i feel so alone and scared

Ok, well this has been happening for about a year or so now, and its driving me mad. i've lost all my trust and respect in her, and i cant stand being near her anymore. just because my dad lived in another province (due to work) my mom thought that all my neigbours were flirting with her because they thought she "was single". like if a car parks infront of our house, she'll think that one of our neighbours parked it there just to get closer to her. also, i see my mom
every night staring at the other neigbours houses, and making weird gestures, and shes always talking to herself. and must i note that these neighbours BARELY talk to her, and that they all are married.

also whenever she drives, she assumes that cars with specific brands are stalking her, and that our neigbours ordered "spy's" to do so. also whenever she parks, she trys and avoids these brands because of the spying. its gotten so bad that shes even contacted to police about this.

she is very dangerous in the car. she starts driving extremely fast when she believes someone is stalking her, and sometimes she'll even follow/tail gate other cars, and she thinks its completely normal. however if someone did that to her she would completely go beserk.

so thankfully we moved out of the area, and in with our dad. and yet she still believes that cars are out to get her, and the the neigbours ordered spys to come travel through 3 provinces just to come and stalk my mom.

i try telling my mom that she does have issues, but she just yells at me and tells me that when im older and peeople start stalking me, she wont be there to help.

its killing me because not only does she believe her neighbours are after her, but whenever she meets my friends parents, a few days later she will assume that they are after our family aswell, or that they have connections with our past neigbours. one time she thought that my best friends older brother wanted me to be his girlfriend (i never talked to him before in my life), so she forbided me from hanging out with her.

anways, my mom just came back from another police station right now, because she thought another car was stalking her. the officers encouraged her to go to the hospital but my mom refuses. now she thinks that the town police are after her, and are part of this stalking bullsh*t. i dont know what to do anymore. the police said that if my mom doesnt cooperate, they will take me and my siblings away from my family. i dont know what to do. i cant handle this anymore.

im sorry for making this question so long, but i really need help.

any help/advice would be appreciated. just no religious bs.
sorry for making this soooooo long!

sincerely, a 15 year old girl who wants her old mom and her life back. its being teared apart.