Who am I?

I am going through some crisis with my personality (due to this I needed to make a phonecall to my mum, THAT is serious) as we are trying to analyze ourselves here at school during a course. And it is great, I mean who wouldn't be interested in themselves, I think we all are in a way or another. But the thing is I am very much against this putting people in to boxes, though it is not about it, it is just about tendencies, yes, I know. BUT the thing is, I fit into them pretty well and it amazes me why and how has someone been able to think and create something like this and then it actually works? Should we as humanbeings be that predictable? Are we all the same at the end or do we follow the same patterns in a way or another? And as I believe in God, this almost makes me think whether He ran out of ideas while creating us? Which I don't really believe, we are all unique and that's why we are so important to Him. So maybe He did this in purpose, because He knew how many different people were needed to make this system called "the world" to work properly, or? But as we look around it is not working its best way out, is it? But that is already another issue and has something to do with our choices as people, though God is a sovereign Lord.
Sometimes, just sometimes, my head feels a bit too small and my will to understand too great.

(ps. the course that we are going through is excellent and has already been so very helpful within my team and inside my finnish head. This is just to avoid wrong thoughts mates.)