Almost picked a character I'd like to be for this one but at the last minute realised I do have a character I can relate with. Applies more to my younger self, but nonetheless I certainly feel we have a lot in common:

Neku Sakuraba - The World Ends With You - DS

I kinda feel the character description in the link explains most of it but for clarity; during my teenage years and early-twenties, I was a moody, angry and angsty little bastard. More than a touch melodramatic (which is still true to an extent) and prone to shunning people and keeping people at arms-length.

True enough, I didn't go through some sort of crazy life-death situation to dissolve my barriers but still. In the game he grows to become more open and trusting which is ultimately why he survives, not because he's incredibly powerful.

Plus, he has spiky hair, loves blocking out the world with music and has a sweet skull on a chain to boot. Nice. :)