What can you do when you have lost a loved one and it's so hard on the person because you miss them, what can

I lost my grandmother 2/5/04 and it's still very hard on me because I never got the chance to say goodbye and she was my prode and joy. She made me happy al the time. To this very day I still cry myself to sleep because I miss her. I sometimes wish I could see her at times but I can't but I kow her spirit is with me.