As Salam alaikoum

I am contacting you because two years ago I got possessed by jinn and self ruqya wasn't doing anything so I decided to ask for help and found a woman who works with jinns she said she would help me if I give her a symbolic euro in exchange she my situation got worse and I lost a member of my family because it symbolise s one soul and I feel now guilty of murder. Am I guilty of murder? If so what should I do?