I think you're a mix of Monk and Thief but I'm leaning a bit more towards Thief in the end. The description of your positive and negative traits reminds me od characters like Locke and Edge, and even if I can definitely see a bit of Soldier as well in some of your answers I think that Thief is a better fit for you.

(http://s998.photobucket.com/albums/af102/sayakahiyoshi/FF%20banner/?action=view&current=haryanbanner-1.png)