Haunted or am i crazy???

My young brothers James and Jake doesn't want to go to school, and i know why there are bad vibes in THAT classroom. I recently spent the afternoon in my twin bros classroom at there school. Jake crys everytime he has to go. And James told me a story that everytime he looks at the window the tall woman with "hair like mine" he would say. (he has hair so blond that it's white) There is no teacher with hair like that. I went into the classroom at night with a friend who is the guard there, we felt something really wrong in the room. I told him about my bros, and the lady. Then he sat me down and told me about how he can hear the children running around at night, and a lady crying. I thought he was trying to scare me, but like an actor waiting for there cue i heard people running. We left soon afterwards. (I had to take him with me, i wouldn't let go of his arm) I don't know what to tell my parents. I can't tell them about hearing the footsteps because they don't like the person who let me in. I don't know what to do. I wonder if it is haunted or something. It is a newer building 8 years old. I don't know. What do you think i should do???