Stayed in a hospital for 2 weeks for depression and anger.
Somehow I missed this part the first time I read it.
Depression is definitely a serious thing, one I'm well acquainted with. It will color everything, and change your perception of reality, without you being aware that it's doing so. One thing I really want to suggest is to not automatically go with your gut reaction to things, which much of the time will involve anger or sadness, or some other form of high anxiety. It'll take time to learn to think differently, but in the meantime it's best to think things through with your head, and
try to be objective and see things from other people's points of view.
Depression has a way of making you selfish, inadvertently. It takes a lot of effort to see yourself through other people's eyes.
And what you often won't realize, is that a lot of the problems you see as being external (what the world is doing to you, how girls treat you, etc), often are actually coming from you. (I'm saying "you" in the general sense, as in "people with depression"). People treat you the way you expect to be treated, not how you want to be treated. If you show hints of anger and pain, even subtle ones, it will influence the way people treat you. On the other hand, if you smile and show a happy disposition all the time, people will respond to that as well.
In a way,
pretending to be happy and not bothered by things is a great way to start (that whole "cool and aloof" thing). People will treat you better when you're presenting yourself more nicely to them. Over time, it'll become real.