Dark Entity Following Me Around

First, I'd like to apologise for my mistakes. I am not a native English speaker, but I will try to do my best. I am posting this story here because I am desperately trying to get help but people either don't believe me or refuse to help me.

I live in Belgium. Most of the things I am describing happened in my parent's home, which is a new home that they build approximately 20 years ago in the countryside. There is something there that has been following me for a long time now, and I really don't know what to do anymore.

When I was a little girl, my mother was always feeling sick. She had terrible headaches, vomited constantly, and no one could ever find out what was wrong with her. I know that she went to a radiesthesiste once and that she never felt sick again, but she refuses to talk about it; I learned about it by accident when my grandfather forgot that I wasn't supposed to know.

I think it was after my mother felt better that the thing that was attached to her decided to harass me instead. At first, it was only in my bedroom: the bedsheets would move as if someone was sitting on them, I would see a reflection of a window were there shouldn't be one, I started to have terrible nightmares... I was terrified to sleep in this room and slept with the lights on every night.

When I was a teenager, my brother moved out and I took his room instead. For a time, nothing happened, and I finally felt safe; but it didn't last and soon enough everything came back.

When I went to university, I was so relieved to have a dorm where I finally wouldn't have to worry. Once again, at first everything was okay. But when I went back to my parent's place for the holiday, it started to get awful. My mother used my first bedroom as a small upstairs living room, and she exposed a few matryoshka (nesting dolls) there. When I went to that living room to see what she had done with the place, I saw that every matryoshka but one were facing to the right, in the direction of my new bedroom. The last one was looking straight at me. Thinking that my mother was playing a prank on me, I moved every doll in the right position. The next day, they were once again facing my bedroom. I moved them once more, locked the door with the only key that could open it, and stayed awake all night to be sure it wasn't a prank. Nobody went to that room all night. The next day, they were once again turned to face my bedroom. I panicked and locked them in a drawer. A few days later, I woke up with a huge red handprint on my stomach.

I was so relieved to go back to my dorm after the holidays, but it didn't stop there. Nothing happened for a few days, but then I started to wake up covered in scratches. Some of them were huge and I still got scars from a few of them years later. That was when I decided I needed help and went to a psychic. I don't know what she did because she didn't want to work when I was in the same room as her, but once again everything was quiet for a while before getting worse. Mirrors and paintings would fall on the floor when I was in my dorm and my nightmares were worse then ever. My parents told me on the phone that their cat was now refusing to get in the house and was sleeping outside.

I went to a second psychic, who told me that she couldn't do anything without putting herself in danger and refused to help me. I went to a third one, who told me that there was something attached to the women in my family and that refused to let me go. She told me that it would try to bring me back to my parent's home every time I would try to go away, and that it was angry at me if I stayed away too long. She believed it had been human at one time, but she wasn't so sure about it. She couldn't help me either and I finished my studies with that thing attached to me.

After getting my degree, I had to go back to my parent's home because I found a job near their house. It went just as well as you can imagine. But I am moving to my own house in a month and I am afraid it is going to follow me there as well. I beg you, if you have any idea of how I could get rid of that thing, please let me know.