Is there life after death?

My mother died on January 18, 2013. Almost an entire year has passed and, yet, it seems like just yesterday I was sitting at her side @ United Hospital imploring her to wake-up. I begged her to wake-up for days. I think of that often. I believe that, early on in her hospitalization, she COULD hear me hence the single tears that would slide down her face. She could not talk because she was on a ventilator. She could hear. I know that. As a mother myself, I know that there are three voices that could possibly bring me back from the abyss if I was unconscious or in a coma. If I could hear them at all, I know that, if my sons were begging me to wake up, I would try as hard as I could to return to this world and to consciousness. When I ask if there is life after death, my question applies mostly to myself. How is it possible to really go on and live? How can time go so cruelly on when someone so important is gone? Sometimes, I think time should have stopped permanently for me on January 18, 2013. I needed more than the 2.5 weeks I spent in Minnesota to come to terms with what happened. I still need more time. I am not the only person to ever go through this experience and, yet, I am. If I get to a place where I am at peace with my mother being gone from this world, does that mean I have left her behind forever? If I don't think of her everyday with sadness, does that make me a bad daughter? Or, must I accept the sadness which is what I think I must do. I must accept the sadness and move on and miss her forever.