I've thought more about this since starting this thread and think I've come to somewhat of a conclusion. The way I see it, the Bible is inerrant in that it is the word of God documented through human authors. But this does not necessarily mean that God meant every word to be interpreted in the literal sense. Since nobody can fully understand God or His actions, it would have been pointless for Him to try to describe everything in literal detail; not only would this be impossible, no one would be able to wrap their heads around it even if it was. So He instead revealed His word in a way that people could easily understand. For example, since no one can fully comprehend the creation of the universe--which most likely took billions of years--God presented those years as seven days and simplified His explanation of how He went around creating the world. It would be like explaining to child how an engine works. Are you gonna use exact numbers, like compression ratios, degrees of timing, etc.? Of course not. You'd make it much more simple, accessible, and easy to understand. Now imagine that you're God and you want to explain something as infinitely complex as the entire universe...chances are you'll do something similar. That's what I believe God was probably doing in Genesis and throughout the Bible.
Does anyone have an opinion on my position? Once again, I'm open to everyone's interpretation and my views are far from unchangeable.
My opinion is this; I came from the opposite way you have. I was born into a secular home and was raised to believe what the world teaches about human history. Billions of years, evolution, etc. God challenged me to look at the evidence for their side and I found out it would take more faith to believe what they were saying then it would to believe the bible. I chose to believe the bible and the Lord has abundantly blessed me in that. This was a key scripture in my journey:
Proverbs 3:5
Trust in the Lord with all of your heart
Lean not on your own understand
The main issue with your idea is that it is going beyond what is written. God said His ways are far above our ways, which means that can't figure out why He does something a certain way without telling us. Did He really write it that way because we couldn't understand how He did create it, or is there another reason? He didn't tell us, which means we should be very careful coming to any conclusion beyond what is written. It would be leaning on your own understanding of why you think Genesis was written the way it was. Clinging to the truth of Gods word is of the utmost importance, and getting a little off at the beginning will lead you down a path of a lot of confusion and deception. We should really be afraid to go beyond what is written because of the potential to be deceived.
We also have to look at the weakness of that particular theory. If we go by the theory that days are long periods of time, then it collapses the narrative. God created the Sun on day 3 and He created the plants on day 4. Did plants survive millions of years without sunlight? It doesn't make any sense. So, we have negative evidence that the days are long periods of time.
Most importantly, we have to look at scripture. Jesus said in the beginning:
Mark 10:6
But Jesus told them, “Moses wrote this commandment for you because your hearts were hard.
However, from the beginning of creation, ‘God made them male and female. For this reason a man will leave his father and mother and be united to his wife
Jesus said God created man in the beginning. According to secular history, man didn't emerge until billions of years after the Earth was created. Could that rightly be called the beginning after billions of years had passed? It doesn't make any sense that Jesus would call that the beginning if that were true.
Exodus 20:10-11
but the seventh day is a sabbath of the LORD your God; in it you shall not do any work, you or your son or your daughter, your male or your female servant or your cattle or your sojourner who stays with you.
"For in six days the LORD made the heavens and the earth, the sea and all that is in them, and rested on the seventh day; therefore the LORD blessed the sabbath day and made it holy
God is telling the Jews that they must rest on the Sabbath because God created the world in six days and rested on the seventh day. Did God rest for millions of years? Doesn't it seem a little odd that God made the creation week the basis for our week, and yet according to the long ages theory the two things have nothing in common?
There is a lot more evidence supporting a literal reading of Genesis:
Did Bible Authors Believe in a Literal Genesis?
Should Genesis be taken literally - creation.com