Too many messed up nightmares..

[NoSushi]

I've been having a lot of very scary nightmares lately..I only remember all of this one though..please help interpret it..I've had this nightmare before..

I was in the English classroom at school and students were doing acrobatic tricks over a large deep pit. My friends and I thought that we needed to dress formal for the performance so we suddenly all had dresses on. Nobody else was dressed like us so we changed our clothes. I was suddenly walking out of a bathroom and then suddenly sitting at my desk as well as everyone else. The teacher was talking about a mask that was hanging on the wall. Everyone looked at it and freaked out.
Suddenly everyone in the room disappeared and I was left alone with a boy. I never actually saw his face..he always had his back turned toward me. The classroom changed too..there was a small room with a bed and a scary lady was laying in it. When I saw her, the whole room changed to my house. The lady kept screaming at the boy, I think he was her son..she kept screaming "no Ricky! you can't do this Ricky!" She sounded crazy! Since I had the dream before, I knew what was going to happen..the lady was going to chase me. So I grabbed the mask and ran out to the garage. I was hoping that keys would be in the car but they weren't. So I ran as fast as I could out my driveway and down the road. The lady was already chasing me..she had long black scraggly hair and wore a gross white dress. Ricky was trying to stop her but she was yelling at him the whole time. I could tell she was getting closer but I kept slowing down. Then I woke up..Btw I was aware of what was going on..but I couldn't control anything..