What does it mean if my dad is trying to kill me in a dream?

The first thing I remember is being already scared and baracaded in a flat. I looked out the window and my oldest brother was there, he signaled to my dad and then my dad shot a sniper riffle at me. I was then running from flat tower to flat tower and then my mum was there. We tried to get in the lift to run when my dad was coming and she didn't make it. We were trying to get to each other but I kept apearing in other towers. I then ran towards a flat and ran into Britney Spears and borrowed her phone to call my mum. We met back up and ran into a flat together from my dad.

My alarm then went of.