Everyday life is a challenge. God is the only one with the real answer. God is the king of everything. He created all that is, maintains it day by day and apart from knowing God, we truly live in a hopeless world.
We can never be holy enough or do enough that is decent to gain God's favor, but we don't have to. In the letter to the Ephesians, Paul summarized it well: "...it is by grace you have been saved, through faith-and this is not from yourselves, it is the gift of God-not by works, so that no one can boast." (Ephesians 2:8-9)
There are several tools out there which men have written in seeking to help people better understand what God meant in the Bible. None of them are perfect, but the ones we find to be most consistent with God's Word are found in the Westminster Confession and shorter and larger catechisms.