I don't know for sure. It could be a blend of real experiences and creative imagination. To determine if it's truly a true story, more context and research would be needed.
Juliette is a main character. She has a special power that she has to deal with in this dystopian world. Adam is also important. He has a connection with Juliette and they go through a lot together. Warner is another key character. He's complex, being both a villain and someone with his own motives and desires.
Well, in 'Shatter Me' dystopian novels, there's a sense of isolation for the main character. Juliette is isolated because of her power which she can't fully control. The novels also have a lot of action - there are battles and struggles against the oppressors. And the way the future is envisioned, with limited resources and a lot of fear among the people, is a typical feature of dystopian novels.