It's really good that you have regular counseling. Is there a grief therapy group (likely through Hospice)? I found the other grief group people helped me more through their sharing than anything the facilitator said.
my husband died suddenly 5 years ago. He was 68. I'm just turning 68 in June. Like you I can't imagine not having him with me for all these years to come.
I'm so sorry to hear that you lost a son, also. It is so wrong for a child to die before their parents. I can only imagine that one of a kind pain. And the death of your husband surely touched off all that pain, too.
I don't believe that God had anything to do with the death of our loved ones except to walk with us afterwards so that we won't be alone. I think God and the angels cry with us even though they are able to see the wider perspective of lives and the world. They feel our pain.
I hope you are able to feel that love feeling through your grief. You are never completely alone. I think your loved ones are nearby even though they are on the Other Side. They are close to you; checking in.