Ghostly Whisp Of A Tail

This is my first of many stories I will write about. It kind of freaks me out and I wonder whether you could help me.

My first experience was when I was eight years old a month after we just moved into our house. I scurried to the bathroom to go "potty" as I was washing my hands I turned and nearly screamed. I saw a Ghostly whisp of a tail and the upper half of a body passing through my bedroom door which was closed. I high tailed it down stairs and told my parents. My parents said I was seeing things.

My second experience was when I was in the 4th grade. I got off my school bus, and walked towards my house. I turned the knob of the door. It was locked. I got very scared and kept pushing on the door until finally I gave it a little push and it popped open. I remember by the door it was oddly cold. I heard someone upstairs and called out thinking it was my mother or one of my three sisters. No one reply.

About 3 months ago I saw a glowing blue ball of light and later an image of a girl with blond, hair blue eyes maybe 13 the same age as me.

I remember brushing my teeth in the bathroom when I heard someone walking in the hallway. When I looked over there was nobody in the hallway. This has occurred many times.

I was at school in science class doing my work when my friend Hailey went to the bathroom. I heard someone come into the room about 5 minute's later, walk behind me and sit in the chair next to me. Thinking it was Hailey I looked over but there was no one there. About 1 minute later Hailey came in. She is also haunted by a ghost.

I got out of the shower and my mirror fogged up like always. I always lock my bathroom door too. When I looked at the mirror, there was a broken heart drawn into the steam on the mirror.

Can anyone explain or tell me how to communicate with my ghost a bit more? She also likes to walk around at night between 2-4 in the morning or tap on my door making it creak.

Thanks everyone!