i dont know whats wrong with me

I have ADD, I was made fun of in school for being fat and generally avoided people whenever I could. After I graduated high school I began to experiment with drugs, but would do it in excess. while I was on some of these drugs I would experience hallucinations outside of what you normally see (on acid I would hear voices. one time while I was high I heard voices and saw a ghost of my mother walking around my kitchen) after a few months of doing excess drugs daily I managed to quit and I've been sober from everything for about 8 months. since then I began to become paranoid and would think that everyone is looking at me and talking bad things about me. I got a fear of talking to people in groups. I began talking to myself in my head in which I talk to myself as if I was a different person which causes headaches but I dont have any control over it. I am depressed and have anxiety attacks weekly. I will ignore my parents and refuse to talk to them for no reason at all. I began to lose weight fast after I quit doing drugs and I couldnt find any reason for the weight loss. I had relationship problems because of the fear that they dont care about me. I came to terms with the fact that I am also a compulsive liar which also got in the way of one of my relationships. I told her that my parents beat me as a child. lately I've been having delusions of grander. I've been drawing and writing stories for a long time now and lately I feel as if I'm a artistic genus and I have been "chosen" to write like Shakespeare even if I know this to be a falsity. ever since I've had the delusions of grander I also seem to be psychotic in the eyes of the people around me. I will talk about death because that kind of thing interests me but everyone around me thinks that im psycho and typically avoid me. lately ive also been thinking that im more attractive then I am when around people but when im by myself I think im ugly. whats wrong with me?

[Roger Gould, M.D.]

This could be something serious that requires you to see a psychotherapist.  It also could be your way of trying to figure out who you are at this time of your life.  You have graduated high school and started to lose weight and got off drugs which means you are trying to find a good pathway in life.  In either case it would be helpful for you to talk to somebody and sort all this out.