My soulmate is 20 years dead

Kaelyn was your average 17 year old girl, on the verge of cracking under the pressure from both doing well at school and maintaing a healthy social life, when she realised the weird occurrences in her house could be related to something paranormal. Investigating further, she realises it's not the house that's haunted, it's her.
Kaelyn needs to find a way to communicate with the ghost so she can get rid of it and carry out her normal, somewhat depressing life, but the ghost, having gone through both life and death, is much wiser than kaelyn, and knows secrets needed to be shared