What is Wrong With my Room?

Okay, so I have a super freaky room. It's mainly the bathroom next to it, but the whole room has something wrong with it. In the bathroom, there's a large mirror one the front wall and a medicine cabinet on the wall right of it. If you look in the medicine cabinet mirror, there is an irremovable spot that looks like a hand print. If you have seen Mirrors, that is one of the reasons it freaks me out. Also, if I leave the bathroom door to where it's barely hitting the frame, it starts to open, AC on or off. But it only happens if I'm in there. Rarely, there is that noise you hear coming from your house, like when wind is hitting it, coming from the medicine cabinet. Here's where it gets scary: On multiple occasions, my dresser that is right outside my bathroom moves. Like, it just shakes out of nowhere. I'm a teenager, thirteen to be exact, and I know I probably seem like I'm joking. But I'm not. It gets worse. My sister, my brother-in-law's two brothers, and I heard footsteps. They originated from outside my bedroom. My brother-in-law's brothers and I headed down TWO stories to my sister's bedroom, and heard them on the stairs. Should I be terrified? If you believe me, thank you. I am in a townhouse, and I think something is up. I'm not on anything. I've only ever gotten high off Sharpies, but I don't do anything else. Please, for the love of God, tell me what to do. I don't dare tell my parents because they would tell me to stop fooling around. I have been haunted before. Years ago, when I was maybe four or five, I was awoken to a noise. I slept with the hallway light on, my bed facing away from the hallway. I stood up to see what was out there when I saw a shadow. It was moving very slowly and it went into the darkness. I looked out to see if there was anything there, but I was alone. I will never forget this moment because it is burned into my memory. So I ask for a final time, help me! I chose religion and spirituality because of the spirit part.