Idiotic Things People Say
Here is Idiotic Thing #1: In the middle of an argument with someone you say: "You don't know me." You say this in some sort of defense of your argument. As though it is someone else's responsibility to know what you won't tell them. If you're not going to tell people about you, don't expect them to know you. And if they don't "know you," don't use it as an argument because it's you're own fault and makes you look like even more of an idiot.
I really don't understand why people seem to feel proud at shutting people out. As though it is some sort of accomplishment to be rewarded to make it as difficult as possible for people to get close to you.
The reality of the matter is that people who do things like that realize how ill-equipped and prepared they are for dealing with other people. They're so afraid of looking like an idiot that they do the most idiotic thing, and shut everyone out. Then they get all kinds of pissed when noone understands them. Imagine that.
So get over yourself, and open yourself up to the rest of the world. You don't have to sacrifice yourself to the world, but not being a brick wall would be a good start.