"Beating yourself over the head" is a common phrase used to describe the energy of regret. God commands you to leave the past behind. He further commands you to take up your cross and follow him.
The road ahead may appear to be dreary and uninhabited, with few travelers to cheer you along. However, the Scriptures warned many centuries ago, that the road to salvation is narrow, and only a few find it. If you are one of the chosen in God's millennial kingdom, you are on that narrow road. Know that the Lord God Almighty is with you.
The Lord God Almighty El Shaddai