Disappearing Old Man

I had just gotten ready for bed when I heard dragging on my floor. I looked down from my bed and saw a shadow. I was really freaked out. I looked at the chair across my bed and an old man was staring at me. I cried myself asleep.

Later that night around 3:00am, my brother ran in my room and woke me up. He said he saw an old man go in my room. I asked him where he went and he said he died. I asked him what he meant by that and my brother told me that the old man disappeared in the hallway.

I told my dad but he thought I was crazy. I have tried to avoid the ghost but it seems impossible. I feel like somebody is watching me everywhere I go at home. I feel breathing in my face when I go to bed, stuff from my room falls off when it has no reason to.

I talked to my grandma and she told me that there are no such things as ghosts but there are such things as demons and evil spirits. She told me that if I play magic or watch scary movies it will cause the spirit or demon to try and interact with me and be harmful towards me.

The ghost or whatever it is doesn't seem to want to harm me, it just follows me around and watches me. When I have thought that it was around me I have tried to ask it questions but it doesn't answer back. I'm thinking of maybe getting a Ouija board but my grandma told me NEVER to use them because it is dangerous and can cause other spirits to try and interact with me too, and they could maybe be evil and could be violent and dangerous.

I need help and opinions on what I should do. Anybody got any ideas? It would be really helpful. I'm going crazy right now because nobody believes me...