Severely lacking in self-esteem, confidence, social skills and motivation, passive, cynical, pessimistic.
I generally don't show much emotion (though I was born with a face that, when emoting, looks uglier than it normally does), only possible exception being my voice which most people tell me sounds like i'm severely depressed or manic-depressive. Despite the Gordon Brown-esque façade, i'm quite sensitive to other people's opinions of me.
I have a tendency to choose abort rather than retry, so to say. If I make an error, i'll toss the whole thing out rather than fix it and continue on. Applies to pretty much everything I do.
If I feel I can't do it right, or that it requires practice before i'll be at a skill level at which i'll be happy with my work, then i'll not even try. This goes especially strongly for creative pursuits, directly at odds with my strong desire to do and be good at such things. Less so with gaming, in that i'm more tolerant of a learning period (except in strategy games, strangely)
My sense of humour leaves much to be desired, both in the actual funniness of any jokes I tell, and the unmistakeable taint of the darker reaches of the Internet. Generally my own failures are what people find most amusing, like a half-Finnish Mr. Bean.
There are some pretty awful thoughts that go through my head all the time, or randomly appear; such as the thought of killing my cats whom I love dearly, for example. Then there's thoughts of racism, criminal acts, blind nationalism, other kinds of killing and the usual depressive line of thought. They generally cause me distress when they come to my mind, and make me hate myself more for having them. I'd sooner die than let the content of these thoughts become known to anyone I know in real life, and I do not let them control my actions. I just fear the day when I lose my self-control (which is rather considerable, though perhaps the term self-smothering would more aptly describe how it defines my behaviour i.e. putting a pillow over the sleeping face of my desire to do things) and these thoughts become actions.
Not sure insecure is an apt descriptor, rather i'm secure in the belief that i'm completely inferior in all aspects.
I generally am highly suspicious of people, if someone seems to be acting friendly towards me, then i'm thinking to myself "how on earth would they benefit from making my acquaintance?" As the answer to that is usually "not at all", that often leads me to believe the person is either insane, drunk or American, to take from one Finnish joke.
Also, I can never leave my posts alone; i'll write the initial post, think of more stuff to put in it, then I end up continuously amending a post until it's longer than A Not-So-Brief History of Everything.