My sister's 50th Birthday is coming up on April 29th. We talked about this big "Over the Hill" basth. She died on August 20th, 2010. I'm not sure how to approach my family about this. Should I ask my parents if they want to celebrate? I don't feel like celebrating. I don't want the day to go by with out acknowledging it. I still miss her so much. I don't want to depress everyone but I want to remember.