Wazifa for fear

I have a friend whose studying ilm. She is a Muslim. She has a loving family and loving friends. Everyone in her life cares for her very well but she is still not contented. She always has fears. She randomly starts crying. She sometimes sees things behind her. Yesterday she saw a black cat behind her but there was nothing there. She does all her amaal. She reads her morning and evening duas and manzil too. She feels like she is possessed by a jinn but she is not sure. She has no fear of running away or committing suicide. She only hasn't done anything yet because I've stopped her. She acts happy and fine in front of her family, teachers and classmates but when she is with her friends she gets a chance to express herself. She wants to be fine and normal and wants to get treated but she can't tell her mum because her mum is very sensitive. She'll probably slap her or sit in a corner and cry and her dad is the same as well. Can you please send me some duas for her heart's contentment and to escape from fear! Can you please tell me how to get rid of the jinn if she is possessed! Can you please help me!