My story begins when I was 15. A friend of ours died in the Joplin tornado so we ended up receiving custody of her two girls. The youngest girl is my age and we were really close friends. We shared a room in the basement together. It started out with us hearing little noises around the house when we were home alone. I just ignored it thinking it was my mind playing tricks at first.
One night around 3 am I flipped over to my right side to get more comfortable. When I did flip over I saw this black thing standing over my sister. All I could make out was these evil red eyes and what looked like horns on its head. At first I thought it was just small but I realized it was hunched over her. It knew I was watching it because it looked right at me! I was completely frozen for a minute but then I grabbed my bible next to my bed, closed my eyes, and started praying. I never looked back to see if it was gone or not.
Not too long after, my actual sister and her friend were home alone and heard someone in the other room talking. They have experienced some stuff but they haven't seen anything. There have been times when I am home by myself and have heard my name being called and whispers around the house.
After that I was pretty terrified of staying in the room by myself. I haven't seen anything since then but we still experience stuff. I moved to a different room after the oldest girl moved out but I recently moved back to the room. Right after I moved rooms I was finishing putting away all of my stuff and heard this loud banging on my door. I thought it was my sister because she usually knocks really loud but she said she was upstairs putting her stuff away too. My mom was the only other person home with us at the time so I asked her since her room is across the hallway from mine. She said no, claiming she didn't even hear banging at all.
After that I have started having bad dreams. It is always about the demons attacking me or my family. I watched my family and friends get torn apart and tortured to death by these things. The dreams scare the crap out of me. I'm not really sure if our house is "haunted" or if whatever this thing is followed the girls since nothing like this happened until they came to live with us.
I'm not sure what to do about it but keep praying since my parents don't believe us. If anyone can help tell me what this thing is or what I need to do, please comment. Thanks.