Grieving over my father

Does grieving the loss of a parent, namely my father, ever stop? I got through Memorial Day, feeling so very helpless and sad, missing my father, a wonderful man and prisoner of WWII Germany. I don't know if I shall ever go back to my normal life, now that he is gone, and how can I. I wrote a book on the subject of grief, in 2009, in hopes of relieving my own, however it remains like the plague. "My Father's Straw Hat" published by Tate Publishing. Please write to me or talk to me about your grieving process. I would love to hear from you. Trish.