I am sorry you are struggling with the one-year mark of Dolores' passing. Grief is so difficult to endure and at times just shows up unexpectedly. However, on a day like today, it is more difficult to handle.
There is no time limit as to when grief eases. And quite honestly, it never goes away entirely. Some days might be a little better than others, Brent, but because you obviously loved her a great deal, the loss is especially difficult to bear. Spend time remembering the joys you shared. Cry and let out your pain - it's much better to cry than to keep it bottled up inside.
Dolores is safe in the hands of God, Brent. Nothing separates her from Him now. Praying for you to feel God's presence and to ease your pain.