No amount of character development will ever replace the exercise of drafting.
I ranted more about this on the challenge of the month thread… 
http://www.holyworlds.org/scifi/viewtop ... 742#p12742 But long story short, I reread this fractal and noticed a few ways Carter’s character morphed during the rough draft.  I wrote them down for my own reference, and I’m posting them here if anyone’s genuinely curious.  

First, I defined Carter’s college major.  Originally I wanted it to be something active, something he might be physically incapable of doing during/after chemo.  But I couldn’t think of a physical occupation that fit his personality; he’s not one to have a job involving a lot of physical labor.  So I decided he’s a computer science major of some kind.  
I don’t have a precise degree yet, but Carter is the kind of person that would end up as an IT guy at a business.  Not a graphic designer/program developer, but more of a computer management kind of thing.  He does a lot with the physical end, fixing broken electronics and the like.  I could see him doing some website management, but more of the technical/bug fix end rather than the design end.  He’d be more likely to take a part a computer and rebuild it rather than redesign a website.  So he’s like Dieki without the artistic side.  

  (If anyone knows of a specific degree that would fit that description, let me know.  Though my brother might know…)
(Funny, I’d envision Carter’s hair being the same color as Dieki’s… but ANYWAY!)
Even though that’s not a physical job, cancer still messes up Carter’s college plans.  First and foremost, his parents want him to stay near home while he’s undergoing treatment.  That sets Carter’s college plans back at least a year; as a result, he loses funding, funding he might not be able to recover later.  So that’s upsetting for him, because he’s not sure when he’ll be well enough to start college, or how he’ll get the funding when he’s ready, or what he’ll do in the meantime!
(And just so you know, I was a nice author and figured out what he ultimately decides to do at the end of the novel.  I’m not telling you what that is, but rest assured it’s a nice solution.)
Another thing I noted was that the fractal makes Carter sound colder than he is.  During drafting I found that Carter was more empathetic than I originally designed.  He’s concerned with how his actions affect others, and he’s somewhat sensitive to their own interests.  Also, he’s rather self-conscious about what others think of him.  
I think this fits nicely with the worldview I designed for him in the fractal.  Carter is mortally concerned about the affect his actions have, and that includes the affect his actions have on others.  He wants the absolute best for everyone, so it upsets him if something he does interferes with someone else’s goals.  As such, he’s fairly sensitive to other people’s goals.  (Not so much their personality, but their objectives.)  He hates imposing and utterly loathes the thought of putting a burden on someone.  He doesn’t like dragging other people down with his troubles.
Additionally, Carter is very sensitive to people’s reactions to him and his moves.  In part, it’s how he gauges success; because he’s so determined to make things perfect, it upsets him if someone else is hurt or displeased with his actions.  Also, Carter hates drawing attention to himself and is rather self-conscious, so he takes people’s opinion rather harshly.  In a sense, he’s obsessively vain about the impression he leaves on others.  Carter’s sensitivity isn’t all bad, though.  Because he can sense people’s emotions, he’s more considerate of them than he realizes.  He reacts to people’s emotions and tries to accommodate them, even if his motives are primarily to avoid trouble.  Also, Carter can pick up a lot of clues about people’s hidden emotions based on external signals, so he can judge a situation with keen perception.
Overall, the fractal made Carter sound almost stubborn.  “I’ve got a plan that I think is the best, and I’m going to stick it through.”  This is not quite the case.  Rather, Carter wants the best but often has trouble finding it.  He’s more unsure than he’ll admit.  He’s constantly reevaluating and second-guessing himself, and he can be tipped totally off-kilter if even the slightest thing goes wrong – especially, if even one person expresses distaste about the situation.  He’s hurting and struggling with too much, but he hates to burden people.  He doesn’t want to cause trouble in other people’s lives.  In a sense, his main objective is to get through life without causing anyone else to stumble.  He takes the idea of “if anyone offends one of these little ones, it were better for a millstone to be tied around his neck and be drowned in the depths of the sea” and turns it into unhealthy paranoia.  He allows fear, fear of failure, to keep him from reaching out and helping others.  It prevents him from seizing the moment and stepping beyond his comfort zone. 
So Carter is a lot softer and much more prone to distress and worry than I originally fractaled him to be.  His arc, then, is still learning to live more in the moment for the glory of God, and he still has to let go of his own plans, but more so he has to let go of his worry.  Overall, the foundation is still the same; the expression is just different.
This empathy comes through pretty clearly in the 1st-person narrative.  The “voice” of the novel is soft, a little worrisome, but still rather blunt and sarcastic.  Snarky concern, if that makes any sense at all.  However, all of this empathy is not expressed verbally or even physically.  Outwardly, I think Carter appears more calm and cool than he is inside; it doesn’t look like he cares as much as he really does.  So that will be interesting.