Rabbis advise that the Bible is to be studied, not read. I was fortunate to have a man (atheist Jew) whose first language was Hebrew. This original language of the Bible (which introduced me to etymology) presents a different perspective than does the English.
Catholic Bible study introduced me to two more perspectives: Bible study as a group, and learning to read/study scripture, not from our point of view, but from God's point of view. As you have already put a lot of effort into reading and understanding the Bible, you may be through with trying it again. But if ever think you it might be interesting to try again, I recommend (online) Ascension Presents Bible in a Year with Father Mike Schmitz. Each day he spends less than a half hour reading the passage and then offering commentary.
I forget which early Church Father commented on the passage regarding the murder of children. He said all the Bible needed to be read through the lens of the final book of the Bible. Reading through the lens of Revelation, he pointed out God was nor ordering the murder of children. He was telling the people that one cannot keep a bit of sin in their lives just to play around with. (i.e., What is a little lie, a little cheating, a little adultery, missing worship/prayer every so often.) The lesson in the story is not to do away with children, but to do away with those small, seemingly "innocent" sins that we allow to enter and stay in our lives.