How can i get over a family member ping away?

My aunt ped away last week she was only 52. I was getting over it but my family is making this slide show with all of these emotional songs that seem to make me sadder then i was before. I get so upset knowing she only lived a partial life and wanted to live longer. I get saddened by the fact that she did not think this was going to happen. Is this normal for me to happen get over it a few days than get sad again. I feel real sad when she won't see me accomplish any milestones in my life (college graduation, marriage and such) This is very hard for me to accept. What could i do to get over this pain and hardship?