I've had it, I can't take it anymore, I seriously give up.

I am sick and tierd of being depressed all the time, I've tried everything to get over it but it just seems to make things worse. I am sick of not being able to hold a conversation with my friends without being a drag and being depressed all the time. I am sick of losing my friends all the time because they don't understand... I've lost nearly everyone cuz of this stupid depression... I hate it, I just want to die so it will go away, I don't care if people keep saying "don't say things like that, you'll be missed" I don't care anymore, I just want it to go away... I just want to be how I used to be before this stupid depression came along... Why can't I just be anormal teenager... I hate this...