How do you stop missing, grieving for someone who is dead?

My Mom died in 2001, and it is so painfull for me even today. how I wish i could pick uf the phone and call her. it is gut wrenching for me. I made a montage on youtube { a href="http://www.youtube.com/watch?v=Fvmkgno1lDM" rel="nofollow"http://www.youtube.com/watch?v=Fvmkgno1l…/a } last nov, but i still miss her so very much any ideas ??