My condolences, Jed. Having recently lost my sister after ten years of adjusting to the loss of my parents, I can understand how the loss of a close loved one can hurt deeply. Although it can sound trite at times like this because so many people offer this observation, in our hearts we know that passage from this life means an end to all the infirmities of body and spirit that plague mortals. Reflecting on and believing in that can help as you adjust to your mother's passing.
With prayers for you and your family,