Dream of hands, eyes

I was in my desk in class. I noticed blood on my hands and i started to quietly freak out. My ex, who sits next to me in class, tried to calm me down by talking to me. By that time my teacher noticed and came to see what was wrong. When she got to my desk, I swung my arm in her direction and cut her cheek, leaving more blood on my right hand. Right after that a white liquid flowed out of my left eye, my nose, and my mouth. the liquid formed a white, blank mask around my face that only had two eye holes. Once i felt the mask on my face, my eyes bled black and turned black. In the dream I have no memory of what happened until my eyes turned back to their usual color. At that point, I tried taking the mask off, but couldn't. I noticed my hands had even more blood on them than before. Once i noticed that, the mask fell to the floor and broke on impact. I looked around the room and everyone was gone and the room was destroyed other than where i stood.