When I think of myself at 15, even 17, I could simply not have done this work on an international level and travel all the time, take care of myself and not feel lost. I feel very happy that this is happening now, and not 10 years ago, as I feel stronger as a person.
In the prequel we're going to tell about the characters before Left Behind, and the book would end with the rapture instead of start with the rapture like the first one did.