Nope, not confused. I totally get what you mean. Getting in the mind of a character that you, yourself, cannot understand has to be one of the hardest aspects of creating an OC.
If you're generally a good-natured person, how do
you get into the mindset of a person that is cold and disconnected from your beliefs? My best advice then, would be to do some research. There are a lot of websites and books out there that will dictate how someone's mind changes from one thing to the next. If you think about it, a cold person, no matter how cold, usually has a significant period in their life that changed them from the warm person they were before. Babies, young children, rarely have a cold nature - an 'evil' nature. It's the environment they're brought up in that dictates that to them.
What could help, possibly is asking yourself some questions. For example: What would have to happen to me that would make me cold? What influence would have to be over me that would cause me to lose my moral ground? What would make me not care anymore? Here (12+)
is a great little article about developing a character when you, yourself, do not have the character's traits. Give it a read and let me know if it helped at all.
As for my characters and getting in tune with them. I've written a handful of stories that have some of my characters in situations that I would never get myself into. The problem I typically have is: How do I get them out
of that situation?
I tend to dance around the subject and eventually just get them out of it. Not by any progressive means - just... tear them away from it. It's scary writing something that you'rF I read up on the average three, four, five year old (and luckily have my own :cad:) and then began to write him as an inquisitive, giddy angel.
Basically, it comes down to research. ^_^ That's the best advice I can give.
*stops before she becomes repetitive.*