Can someone please help me decode this dream?

I'm in my living room when suddenly I look over to my staircase and I see a person coming up the stairs. I try to duck, but the person shoots me .. I close my eyes and I guess I am "dying".. upstairs, my mom, dad, and brothers all see me and are all questioning whether I am dead. They all kill themselves, but then all of a sudden, I'm fine and I'm not dying anymore. I run up to them and start telling them I'm alive and for them to wake up but they are all dead. Suddenly, I am somewhere else on a dock with one of my friends when all of a sudden I realize it's gonna blow up so I jump off just as it is blowing up. Someone please tell me what this means=(