I think you are trying to make God finite or at least box us into that position.
God has all knowledge, he has all the knowledge there is know about creation. One day I will obtain that same knowledge. God can see and know everything that is going on, if a bird falls from the sky he knows it. I will one day obtain that ability. Hopefully I can learn to love as he loves. In those ways I will be like God, he will share his throne to all that overcome, Rev 3:21
It's the idea of family which you are missing.
My mother was an only child (until 20 year later when grandma decided to have another one), she married my dad and they created a family. They had four children, who had 16 grandchildren and now my mother has 42 great grandchildren with two on the way and 5 great great grandchildren.
this is D&C 132 speaking about those that make it to godhood
"....to their exaltation and glory in all things, as hath been sealed upon their heads, which glory shall be a fulness and a continuation of the seeds forever and ever."
Yes God the Father got a head start over me, he will always have more children adding to his glory than I have.