I remember the story little bet. I think i saw it like 2-3 years ago so its not old.
Im gonna tell some deatals
Its about agirl who was sent to aprivet school (catholic I think ) and faced some old evil.
there was witches or ghosts.
its begen slowly, the girl faces problems with other girls and have some fights .
the head of the school (the princible(she) ) give her some hard time too.
there was a wood near the school and bad things happend there.
her father came back for her and had an axcedent but didint die.(i think she was with him in the axcedent)
any way, thay (the school) bring her back and the princible is the bad witch in the end.
well, that pritty much it.
I hope you can help me find the name.

Sounds like The Woods (http://www.imdb.com/title/tt0380066/)

Thanks
That's it

You're welcome.