Scared And Confused

Also I just checked out the cold iron link. Very interesting! I've of course heard of horseshoes being good luck but didn't know the lore behind it. Also heard of using blood and ochre but very interesting! ((:

I would think that being 16 and her parents not believing her it would be a bit hard for her to get/hire/pay for a psychic to come... Just saying

Poltergeist activity can sometimes result in physical attacks. Http://the-atlantic-paranormal-society.com/articles/general/poltergeist.html this is an article on poltergeists. It may not be what's going on, but it's a thought.
My advice would be to take your teacher's suggestion and speak to a psychic. Do some research, and find a reputable one. Ask your teacher if she knows a psychic. She might know one, or might be able to help you find one.

Some times just a little Cold Iron can help: http://en.wikipedia.org/wiki/Iron_in_folklore#Cold_iron

Oh as to the first part of the comment I just left, you don't have to be alone necessarily. You can involve a friend if that would make you feel better. I just meant not to do it while people are going about their normal routines, parents and such. Try to wait until they are at work, or out, or sleeping, etc.

Well take a deep breath first. When your alone sometime I would just talk to the spirit. Maybe it isn't trying to be malicious, just trying to get your attention. You didn't talk to it when it tried talking to you so its trying to get your attention harder. Kind of like a child would, if the kid keeps saying mom mom mom and the mom ignores it chances are the kid will start tapping the mother or poking her or doing physical things to get her attention and the more anyone is ignored they grow frustrated.

I would try to keep myself calm, I know its hard, and talk to the spirit. You can ask it questions, especially if you have a voice recorder, or ask it yes and no questions and ask it to knock on the wall twice for yes, once for no.

I would appologize for ignoring the spirit and try to talk to the spirit as though it were a friend. Ask if it has a message or a reason for trying to make contact. Towards the end you can tell it if it wants to talk to just whisper in your ear again and you will talk to it, ask it not to pinch or scrape you.

Of course it could end up being malicious and in that case you need to tell it to leave, and show assertiveness. This is my home and you are not welcome here! Tell it to leave, if it isn't malicious I wouldn't make it leave.

Google house cleansings. A lot of people use bundles of sage, burn it like insence and 'clean' the house with it. There are various washes you can make to 'clean' the house too. It of course doesn't last forever but it cleans the energy and emotional residue.

Objects, especially natural materials such as wood, hold energy. If you or someone who lived there before you for instance always cried in this one room you would feel sadness in that room. And in turn it could make you feel sad even when you have no reason to be. Which is just a reason to cleanse the area, try to be positive and laugh more. It should lighten the environment a bit.

Hope this helped, best of luck