When My Life Dies Before Me

READ THIS PLOT:
This is about a girl who is 14 and who is in secondary school (high school) and her life becomes... a big mess, she starts to realize that she hasn't been herself for the past few...years, this causes her to be too scared to leave the house to go out or even sometimes to go to school. She wants to tell her only friend but she is to scared because if she can't handle it then how can anyone else...
What will she do?
WARNING:
(This book is just Story, it's not based on anybody, and also this maybe saddening for some people but i'll keep as not so depressing as I can.)