What is the main conflict in Smiles to Go by Jerry Spinelli?

The novel's main conflict is centered around Will Tuppence, whose life is turned upside down by a series of seemingly random events that eventually trigger a greater acceptance and/or understanding of life, relationships, and himself. As it explores Will's friendships, his budding love life and his exasperation with his irritating little sister, the narrative also dramatizes issues related to the changeable nature of time and overcoming fear.