Teenagers especially knows to addiction. The feeling of not being able to put it away. It could be horror. The strangely but enjoyable feeling of getting scared. The feeling of being alive.
“Selfies” is a horror short story. There is fewer settings and it is shorter than a regular novel. There is told in the story that she is getting a brand-new phone and takes selfies with it (p.5 ll.15-23).
A selfie is a relative new phenomenon so the story doesn’t take place a long time ago. It could be a few years ago. The story is also taking place where she was born.