I need help with my abuser

hi, I'm new here and I just created this account because I need to speak with someone and I need some advice. My aunt has been living with my parents and I for five years, she came here because she had a motorcycle accident back in 2020, so she stayed here because she needed a place to stay and didn't have any other place to go. she broke up with her partner just after that so no one was there except my parents and I. that years was my first college year, and since it was during the pandemic I had to take online classes from 1-9 pm, and it was exhausting so I used to eat really late and she was sleeping in the kitchen. as you may be thinking, she started to get mad because "it was really late" and "I was disturbing her sleep" so I stopped eating dinner for a whole year, I lost plenty of weight tho lol. well, the thing is, this person is really invasive, and when I was with my friends she wouldnt leave us alone or she would jump into our conversations as if she was part of it. I got really tired one day and I told her to stop. and that was the beggining of the worst 5 years of my life. her abuse started increasing not only towards me but towards my parents. Since the accident she is after a sort of certificate so she doesn't hace to work anymore and gets money from the state, idk the name of it but she hasnt stopped inventing new injuries caused by the accident: first it was the collarbones, the ribs and her ear (you know, that little bone that makes you feel stable or something like that), but now is her whole fucking body: the jaw, eyes, her legs, everything. the thing is my parents and I know its just a lie, and she talks about that with everyone, she has already had 3 MRI this year which is a lot and nothing was shown so she is lying about it. just for the record, my parents have been taking care of me bc I suffer from stage 4 endometriosis so I have a lot of limitations so my parents say she is just jealous, but everytime she is alone with me in the house, she gets any chance she can to start the abusive behaviour. what she does is start screaming at me and she doesn't stops, and i have to stay quiet you know? my parents dont know how to deal with this anymore because she doesn't have anything, she doesn't have another place to go but i dont fucking care man, I'm so tired like for real its been years being quiet about it, i barely answer because everytime i do she starts screaming and doesn't stop and she can go on for hours so i have to be locked in my room and even with that she doesn't stop. I dont know what to do. I will go over my boyfriend's house but I cant live there for 12 days so i will go like 2 days, return, and hope she doesn't attack me. I am tired but after years like this i cannot control my anxiety or my anger and I'm fucking scared. if someone has gone through a similar situation, pls let me know what you did. bc i dont wanna run away, my senior dos is still here and I just adopted a puppy. I need help.