We Do uphold Bible doctrine. It IS God's infallible Word to us.
Genesis tells us that God Did in fact create Adam and Eve -- this world started out that way -- we Also had a world-wide flood that wiped out everyone except Noah and his wife and family -- they were the only righteous people at that time. Everyone else was exceedingly wicked. After the flood -- they continued to have children and repopulated the earth. But the earth was in a very different scenario as a result Of the flood. We ended up with the Grand Canyon and the oceans, all sorts of beauty in nature.
This world is approximately 6 - 10,000 years old.
And we Also know that Adam and Eve lived 960 yrs. they had Many, Many children over that span of time. The land of Nod was in the eastern part of the garden. Over all those years their kids gravitated over there since that's where Cain got his wife -- they were all sisters and brothers who got together as they matured. They had children and their children had children.
"her" kind were her brothers and sisters who Also went over to the land of Nod.
Just follow what God's Word tells you.