Unknown message

First chapter

Today, she had nothing special to do. Just go to class.
French, math, history... and then the day would be over.
It was the beginning of her senior year, a little exhausting as usual. School, eat, sleep. It's a never-ending cycle.
She was on a break when she received a message.
She turned on her phone, first checking , if it was her father asking where she was.
But it wasn't him.
An unknown number.
Who is this now?
"If you're not doing well, talk to someone..."
She froze.
Her body wouldn't move. Her breathing became shallow, as if her lungs had suddenly shrunk. Her eyes were locked on the message, and her appetite instantly disappeared.
How could this person know?
She never showed anything. No one knew how she felt, especially not her secrets. No one.
She typed:
"Who is this?"
No reply.
She waited.
Impatiently.
Tapping her foot.
Then her phone vibrated again.
A new message had arrived.