Personal challenges. Well, first of all is not having both arms and legs. How can you manage to do things without it? Im not belittling him but Im stating the obvious. Right? In which because of that he got bullied. One of the problems in a teens life is BULLYING. And thats what happened in Nick's life. And also people made him feel so down to the point he really wants to give up but he didnt that was a very brave move.