Living by God's word is something we should all aspire to do. We will all fail and fall short, and He knows this and loves us anyway.

And I would ask ask, what better ways are there to know God than to study His word?

You haven't read the whole thing to know that those picky little rules in the Old Testament were given only to the Israelites. Even the Ten Commandments were only given to the Israelites, although Jesus reiterated them in various ways in the New Testament. Everyone is a sinner. No one is perfect. But right and wrong is spelled out in plain black and white in the Bible. And the KJV is at a 5th grade reading level, so you should be able to comprehend what it says.