I'm curious to know more about your relationship with your dad: How old you were when you saw him last; what happened during the time that he left; What mental/physical state he had at that particular time and in general.

I'm not a doctor nor am I experienced with mental disorders (but it does run in my family) but when reading your post, this is what came to MY mind:

Phobias/Anxieties: when your mind fears something due from a past negative experience they had. When understanding the root to their phobia, it can often melt away on it's own..

This is why I'm curious to know more about your dad. Do you think that maybe all of these "unknowns" stems from the unanswered question you have ABOUT your dad, whereas within time, your mind started obsessing over it and allowing it to control other areas of your life? You mentioned you had symptoms at age 3.

When I read some of your symptoms, I see your experience with your dad tied to almost all:

can;t tell where my body stops and the world starts--it all seems to flow together >> numbness, shock, PTSD, lack of ownership with your own self

-cant tell where my arms or legs or hands, etc. are. Or my body parts look alien and deformed and such >> being violated at such a young child; feeling as if your body does not belong to you - it belongs to your violators: the aliens (your dad?)

-my body feels all distorted and mixed up-like the way a picaso painting looks >> same here. Maybe you're detaching yourself from your body as your way of coping whatever it was that happened to you as a child, and then blocking that incident(s)

- i constantly feel other people/creatures possessing/inhibiting my body-i feel them move inside of me and possess me and such >> that's typical with victims of sexual/physical abuse; an imagination expanding from a situation(s) that has happened; not being able to comprehend what was done

-my face changes when i look in the mirror-like sometimes i dont recognize myself >> shame? Subconsciencely not wanting to see yourself

-sometimes, when i look at other people or objects, i recognize them as me or as my family members >> again, desensitized; replacing people with objects - without feelings/disconnection

The whole world is conspiring against me. I am an expariment and they are trying to hurt me and turn me into their robot. >> Trust issues; betrayal of trust from the higher beings: parents, teachers, governments; people who are in power of you (again, resulting from your dad?)

i use to believe murderers were stalking me and my family, putting bombs outside my house, poisoning my food, hiding in my house, etc. >> Lack of trust and safety within your own environment (where the abuse took place to begin with)

I also have the thought disruptions and problems that come with schiz, like problems analyzing what people are saying, trouble concentrating, mind goes blank constantly, uncontrollabe, unwanted thoughts, obsessions, etc. >> PTSD, Anxieties? Your mind trying to relate and make sense over something that has happened to you as a child?

and the negative symptoms, like flat emotions, low energy, poor hygiene, social withdrawl,no motivation/joy from life. >> Depression; Detachment stemming from trust issues and violation

My other problems is, is that i dont really want to get "better" the symptoms i have have been a part of me all my life. Im afraid of being normal and i use my "insanity" as a way of coping with and escaping from this world and i's reality. >> You've created yourself a cocoon as a way of coping with the trauma you dealt with as a child?

I may be completely off key here but it's a perspective I thought I'd share anyway. I'm curious to know what you think of this though...