This has nothing to do with Genesis.
Genesis 1:2-4, "Now the earth was without shape and empty, and darkness was over the surface of the watery deep, but the Spirit of God was moving over the surface of the water. God said, “Let there be light.” And there was light! God saw] that the light was good, so God separated the light from the darkness."
Now, following your (mis)interpretation...
John said that Jesus was the actual creator. John 1:3, "All things were created by him [Jesus], and apart from him not one thing was created that has been created. " Therefore, if Jesus is the light of the world in the context of Genesis, He was full of darkness(!) and then created Himself as light.
Secondly, if He was the light of men, there were no men created yet.
Thirdly, the only verse I could find even remotely stating that He lights heaven is Zechariah 14:6, "On that day there will be no light—the sources of light in the heavens will congeal" which, in your context, is absurd. Jesus will not extinguish Himself.