What is your definition of psychology ?

I have been confused all my life.. like several others... But recently.. I just can not take it any more...
Well.. Most of the time its just- who am I, WHY AM i, WHere AM I... Whats going on..?? What is this place.. this world..?? I must be a human being by this wolrds semiotic system.. i have two hands, head, eyes, etc.. what all other creatures considered as humans have... and there is such life around us.. what we live.. with rules... with manners... how things are supposed to be... well.. it doesnt make much sense to me... i am able to follow this worlds orders on my better moments.. but sometimes im just like- why, wtf?? Why should i..
Sometimes again I live normal life.. according to this world... I can pretend like normal human being.. i can even forget for some time... my confusion.. but it comes back...
I have had moments of horror... When I am afraid of everything.. I can sit in a corner of a room, my back against a wall... or go under blanket.. hide there... from the world... to calm down...
Then I have moments of emptyness... when i think.. that not even moving my hand.. inhaling.. its not worth it.. as there is no point... whats the point to eat, to walk.. to put one lef in front of another.. to move on.. what for? why to buy a new computer, why to go to work.. why to study? why to function in this world...
im not sad... i dont care... i dont know... i dont see the point...
i do care about others suffering.. i care about sad and heartbroken or lonely people, sick people in pain, hungry animals.. etc... but what can i do for them? nothing.. i cant help myself...
i have started to avoid people and social events.. its not that i can not enjoy them.. i dont know how to even behave there... they dance and drink and talk.. but im thinking- whats the point?
I can still enjoy some emotional movies or books.. they get me off my confusion.. but real life.. not any more..
i used to have some good friends and we had fun.. we were traveling and doing things together...
now i want to be alone.. hide from worls and people...
i used to feel like in Robbie Williams song-
I dont wanna die, but I aint keen on living either...
but now Im feeling...
I dont want to live this world and this life, but Im afraid of death too...

So, I dont really know what to do... I can not die, I can not live.. Im just a empty soul... somewhere... somehow...

the root of all evil is not money. it is not greed, or any other “sin”. it is the perversion of perception. it is to separate “good” and “evil” to begin with. “light” and “dark”; “creation” and “destruction”; “feminine” and “masculine”: those who have been taught there is a line between the two, cannot understand either. it is a product of the imagination even to say that “1″ is separate from “zero”. physicists have done well to prove this, as they have followed their numbers into realms where all of their equations fall apart. into delusion, where they ought be sent. man cannot gain understanding by dividing his reality into smaller and smaller pieces. exactly the opposite, his field of view has been reduced. this story is told by the history of language itself. where once he had many symbols for the infinite and the large, he now has many symbols for the small and the finite. the zoroastrians, for example, had 101 names for “god”, all bearing a different meaning. the earliest symbols appealed to the holistic nature of man’s mind, which saw the giants of the cosmos. today’s symbols appeal to the fragmented nature of man’s mind, which is drawn to think of the “atoms” and “molecules” and the even smaller things. the children of today are made anxious just to think of the vastness of the void, because they can no longer fathom it.

I've had dp/dr, emphasis on the DR, for about 4-5 months. I'm 19 years old. I know I got it after a visit to the ER a few months ago for chest pains, which turned out to be acid reflux. On top of that, I was and still am having migraines and very intense sharp pains in my head. I do have an appt with a neurologist.
Anyway, the world has felt completely fake and dreamy to me starting a few weeks or days after that visit to the hospital. I know my anxiety spiked an extraordinary amount, the worst it's ever been. I've been suffering from panic attacks since I was about 9 or 10 -- I remember sort of feeling derealized once back then too. However I didn't process it as intensely, so it went away quickly, plus I was young and my mind was occupied almost always.
I'm just terrified at the moment, because I've always been tortured by existential thoughts to begin with, but having dp/dr makes them so much worse. Unbearably worse -- they would send me into a spiralling panic where I'd just cry and cry for days on end, and I hate being alone with my thoughts -- I've been sleeping in my mom's bed This dreamy feeling is so real, I can't always convince myself that I'm not dreaming, or that the world ISN'T fake. And that is what's been getting worse. It's like my brain is convincing me everything is fake,oh well. I feel completely hopeless at this point.
My panic attacks lately have been about how I can't believe I'm going through this. I can't believe this is actually happening, so my brain says "it's not" and now I'm fk'd.
Will everything ever feel real again?
Will I ever enjoy life again?
I think another reason I'm stuck in this is because I'm not in school, and I'm unemployed, There's only so much I can do to get a job. I've applied everywhere.
I have memory problems, panic attacks in which I feel as if I've dropped acid, and the world feels so fake I can't believe it's not. Writing all this down/talking about it does not help one bit. I've purchased 2 books in the mail that are supposed to help me--one should come tomorrow, so wish me luck xx
This is one fk'd up anxiety symptom.
(Hard to process it even is one anymore)

I don't know whats going on with me, its getting worse and im getting tired. Im a boy, 20 years old and I can't remember as many details as I would like to remember about who and what I was before that 'something' happened thats why I'll be vague with some things. If you think you may have and idea or have some information or a good advice on this please feel free to answer cause I'm desperate.
I've been in and out of psychiatric institutions since high school and I've been diagnosed multiple times by different doctors (Antisocial personality disorder, Borderline personality disorder, Anxiety, Depression, Schizophrenia Paranoid, Schizoaffective disorder, Bipolar not otherwise specified.) When I was younger I was pretty much in control of myself, some things with me were off but nothing that really bothered me, things like excessive boredom, intrusive thoughts, derealization and depersonalizations and not being able to not to fake every social interaction, a giant disgust for every human, an entertained mind with every mechanic answer, things people could just not see, I planned everything I said and everything I did, it was automatic, It was sorta exciting getting everything I wanted, I stole things like whole outfits in expensive clothes stores even though I had the money just because it was exciting and made me feel good, I abused all kinda of drugs and people in a way, I got sorta lost in the drug path, I started getting psychotic and I did a lot of crazy things like going out of town, not sleeping, spending weeks on the street, drugs, wild parties, sex with strangers, but then a day I started to notice that I wasn't so sure of what I was doing, something that I think I never felt before, I was kinda lost, I was kinda alone and I didn't knew what was the next step to take, like if the part of me that was sure of everything and had everything sorted out disappeared, the drugs were getting down and I was so exhausted and desperate feeling that I couldn't go out for more, now i'm clean except for weed (auto medication) I became aware of every little thing but didn't know how to deal with it or what was the importance of everything, I have a cloud in my mind and im not sure of anything I don't know how to explain it, its driving me crazy, I want to stab my face multiple times after I stab everyone else, I always thought that in a way (a proxemic way) I can read peoples minds but after this happened it was like their thoughts and expression became sharp and aggressive to me, and now its like they can hear my thoughts too in that way also, something happened to my nerves, I can't be relaxed, not in my house, not in my bed, not in my sleep, I just can't relax its like If I am possessed and my brain and inside my body its burning I have ricing and negative thoughts, i'm angry and irritable to the core, to the point that if some one talks to me in that moment I snap and attack them with everything I have and I hurt myself cause I need it to stop now, it so much. Everyday I end up screaming and scratching my face because I don't quite get what im feeling but it is a lot, I can't concentrate, I can't decide between stupid easy things, I feel guilty all the time, I can't organize my mind and put whats first first, that makes me angry as ###$, I can't sleep well, I have panic attacks, night terrors, my stomach hurst and I need to throw up since I wake up, this are just some things that are happening, there are a lot more but I don't know what its important what its not, I also some times experience selective mutism when some one asks me what is happening because my brain does not know the answer or at least thats what I think. No one has been able to help me, not the doctors, not in the clinic , I don't trust anybody and im fearing that Im gonna have to kill myself because I won't live like this my whole life, and its not getting better, 2 years now, I feel hopeless. Alexithymia and mixed bipolar episode are things that can describe...

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