Very sorry for your loss. I too, lost both my parents in short time (13 months), with my mom passing second. She will be gone 5yrs next month, and I gotta tell you, it just never gets easier. Just remember the good times, and keep her memory alive.
Loss my father 18 years ago today. It took me 10 years to get over it, but now I can think back to all the great things he taught me, and have nothing left but gratitude for a parent that took the time to give me the greatest memories. I meet people everyday that never got that chance. Hope that as time passes your grief lessens.
Clem