One thing that I do not want to miss, in our discussion yesterday on evolution, is the necessity to distinguish what is important and what is not important.
The commands of our Lord regarding our lifestyles are straightforward: to love God with all our hearts, minds and souls; and to love others as we love ourselves.
Further, as my Essentials page mentions, there are only a few things that distinguish what we believe are the 'keys' to understanding and loving God.
So any investigations you do on age of the earth, evolution, calvinism/arminianism/lutheranism soteriologies, Revelation interpretative methods, etc., are valuable only insofar as they are helpful to strengthen someone's faith in the Kingdom of God. In and of themselves, they have no value.
I mentioned that I am an Old Earth Creationist. If you tell me you are a Young Earth Creationist, I say, "Great." It matters little to me. What is the age of the earth to we eternals? Whether the earth is four billion years or a few thousand years of age, millennia are nothing compared to the eternity believers will live together. Who cares how long the carpenter took to build the hotel we are staying at, when our Carpenter is finishing out our mansion even as we speak?
So please be certain that you do not fall into the trap of making such investigations take on a spectre of importance to you--for in and of themselves they matter little.
Never forget that - what matter is the Triune God, come to earth and raised back from it, offering us redemption for our sins. That is what is key. And we who believe in the God-Man and follow His teachings know that all which is truly valuable in this world is to love God and love those around us.