A demon or entity is attacking me in my sleep paralysis. What does it want from me?

Here is the story. Years ago, roughly four or 5. I was living in a trailer in Alabama with my parents and my friend Darrell was staying with me because his family from Louisiana was staying at his house due to hurricane Katrina. This is when Darrell was 1st attacked. I was asleep and he was trying to fall asleep and all of a sudden felt like something was on top of him choking him. He couldnt breathe, yell, or move. He tried calling my name numerous times but could not get one word out. Finally he was able to make a noise and the entity released him. Well from that day on for the next four years this happened to him nearly every night, wether or not he was alone, it was day time, or night. He was being tormented on a daily basis. Well one night his dad lost it. His dad burnt down the house and shot himself, right before he did so he called Darrell and told him that it was all because of him. Now Darrell and his father always had a wonderful relationship. I have witnessed so many times with my very own eyes all these father son moments. They always told eachother they loved eachother in the best way. His dad was like another father to me. And this was never something I could see him doing. Either way, after that night the demon or entity never messed with Darrell again. But Darrell did see the demon a few times from across the room, just a dark figure standing there looking at him. He was afraid to sleep for those four years. He also had a few nightmares where the demon was controlling his father like a puppet master and laughing while his dad did all of that awful stuff. Well, I currently reside in Pennsylvania. I went down there for thanksgiving to visit all of my friends, and stayed at Darrells house. While I was there me and him talked about all of this. That night he went to sleep and I was still awake. Laying on the futon looking at the ceiling I suddenly became paralyzed. I was fully conscious and not sleeping, oh also I was sober. So I couldn't move, I suddenly felt something grab my ankles, one in each hand. The best way to describe the sensation I felt would be that it felt like my body was ripped out of my body. I was still laying on the futon but I was somehow being pulled around at full force by some source. It was slamming me around the room like a rag doll. This whole time I was trying to scream and could not make a single noise or move at all. At one point I felt myself being slammed into the area where the door was, I literally felt all of the flesh on the right side of my face being ripped clean off. The pain was so intense that I was finally able to break free and yell. Needless to say it didn't wake anybody up. I stayed up and refused to go to sleep. Well a couple days went by and I was back in Pennsylvania. I was able to make it through 1 day because of being so restless from flying and being up since early morning and just ped out when I came home. The next night I was repairing my neighbors computer and was upstairs in the dining room by myself until about 4 in the morning installing software and removing viruses. Now I seldom scare. I had this terrible feeling that something was watching me the whole time I was up there. Made the dogs come into the room with me and everything. Went to bed in the early morning just as the sun began to rise. The following night is when things got a little sticky. It was approximately 3 in the morning. I was laying in bed diagonally because I broke my leg while in Alabama and had to elevate it so I did so on a chair that was on the one side of my bed. Well I was watching TV and the TV usually illuminates my entire room with a little bit of light, not on this night. The tvs light stopped right above me and from me on all the way to the wall was pitch black. I can usually make out my posters and lightswitch and stuff, but this time I couldn't. I didn't think much of it and laid down and shut off the tv. I heard 3 thumps in my ear, 3 different times while trying to go to sleep. It seemed strange to me so I turned the tv back on and just turned the volume all the way down. Well as I am laying there with my eyes open glancing at the tv screen I hear 3 heavy taps on the end of my bed parallel to my head. I just disregarded it and continued laying there. Seconds later I heard the same 3 thumps, this time half way down the bed closer to me. Seconds later I heard the thumps on my pillow. I instantly wanted to sit up but I couldn't. Then I felt something brush against my hair. I wanted to yell but I couldn't make a sound no matter how hard I tried. Then it got even weirder. It felt as though someone or something was holding me up by my head slowly. My head was lifting up. I could not feel any hands, it was more of a force. My head then started being shook profusely like that in a horror movie, back and forth. At that same time my right arm was slowly lifting up. It was like half of my body was beginning to float. I was horrified, I trie