So very sorry to hear of the loss of your mother. I will keep you and your family in my prayers. She was blessed to live as many years as she did. You are blessed to have had her all those years. Hold on to the good memories. Sad days will always come, those special days that make you think more of her. Just take one day at a time.
People say they are praying for you and your family. This family needs more than one prayer. Each day they face will be hard. So if you have said a prayer, pray more. Pray for this family daily.