Sharicey, I'm so sorry for your loss. It may not mean a lot now, but time will lessen the pain. It will never take away the absence you feel now, but it won't feel so much like you're being stabbed in the heart as time goes on.
If you have any opportunity, seek a Hospice grief counselor. I had the priceless opportunity to be counseled by one after my mother's death, and she was absolutely wonderful.
The only other advice I have is to allow yourself to feel...feel everything. Anger, old grief, pain, sadness, fear...whatever comes up. Allowing yourself to feel is the greatest gift of healing you can give to yourself and those around you.
Two of the best books I've ever read about this subject are:
On Death and Dying - Elizabeth Kubler-Ross (the founder of modern Hospice)
A Grief Observed - C.S. Lewis (you may or may not be interested in this one, as it specifically deals with grief from a Christian worldview)
Peace, and again, my condolences.