Schizophrenia and Multiple Personality Disorder (MPD) are two different things.
MPD is where there is more than one personality in a single body, where as Schizophrenia is fagmented cofnition and such.
With MPD some of the personalitys can be unaware of the other, and are percieved as black outs by the 'main' personality.
I have been depressed but some how i think that is natural and part of growing up,either that or my home town just didnt mix with me...
That theory only works with a few disorders, mainly disorders that deal with the cognition of people, like depression. At least that is my understandingIf everyone keep themselves occupied, and lay off from being an idle, disorders will never overtake one's mind. I know, other factors come in to play as well, but try to remain active, cheerful, and self-indulge yourself into something that you like to do. That will keep one off from all weeknesses.