Mental harassment by Father at Home since childhood which has effected

Hi, My name is Harini 27 year old and I am from Mysore living with parents and presently working from home I have been facing issue with my family especially my father is an abusive manipulative Bad person he does everything to harm me by his words as I am a childhood brain tumor survivor I had neurosurgery when I was 17 and it's been 10 years still he is harassing me mentally and emotionally which has effected me physically. When I spoke to him about my marriage in 2019 he had taken petrol to kill me and he said you are mentally ill person who will marry you and he has his 2nd wife daughter who is so much bad in her behavior both are very harmful to me I need help how to stay away from them and I am scared that he would kill me.