Human nature has a bent toward hurting and harming, but turning to God for mercy and grace, that is, when a person actually becomes born again by the Spirit of God, not by our own efforts with imitations, we receive a new nature - a godly nature - which needs cultivation, pruning, fertilizing. and weeding. The old patterns need to be replaced... That said, recorded in Matthew 24, Jesus paints a stark reality, and to your dilemma, verse 13 might be most appropriate: "But the one who perseveres to the end will be saved."