IF God exists, he has already completed his highest priority.
To start a universe to see what could happen, the development of the conscience and non conscience in whatever form
I don't think we can know what God's highest priority is, but I think we can know what God's highest priority is 'for us', to know and worship God.
By worship, I don't mean sitting in a church and praying and praising God. I mean loving God and serving God by the work we do.
If we work for the Cause of God that is the highest form of worship, but in my religion any kind of work done in the spirit of service is considered worship.
He has no thought or priority to care what a bunch of conscience beings are doing on some planet.
Remember, Earth is all but 0.0000000000000000000000000001%* of the Universe
He probably says 'Meh' when someone thinks he has influence over their life. (I'm not saying he doesn't in the individuals mind though)
I do not think we can know what God is thinking. I also don't think we can know if or how much influence God has over our life. That is a matter of faith.
All we can do is look at scriptures and play detective in order to know what God cares about. Just because we are a mere speck in the universe, that doesn't mean God does not care about us. God has no limits so God can care about everything He created.
According to my religion, the Baha'i Faith, God created humans out of His love for us, because He knew He would love us even before we were created.
3: O SON OF MAN! Veiled in My immemorial being and in the ancient eternity of My essence, I knew My love for thee; therefore I created thee, have engraved on thee Mine image and revealed to thee My beauty.
4: O SON OF MAN! I loved thy creation, hence I created thee. Wherefore, do thou love Me, that I may name thy name and fill thy soul with the spirit of life.”
The Hidden Words of Bahá’u’lláh, p. 4
God wants us to love Him, not because God needs our love, since God has no needs. God wants us to love Him because if we shut God out His love cannot reach us, so it is like closing off the channel through which God's love flows to us.
5: O SON OF BEING! Love Me, that I may love thee. If thou lovest Me not, My love can in no wise reach thee. Know this, O servant.
The Hidden Words of Bahá’u’lláh, p. 4