Most of us have all kinds of old memories, some pleasant and others less so. Anyhow, dwelling upon them is unhealthy, for it impedes spiritual progress. We need to focus on God alone and let go of bygones, and you'd experience greater freedom. Luke 9.62: Jesus said, "No one who sets a hand to the plow and looks to what was behind is fit for the kingdom of God." So, be disciplined and tough.