What God says about you in 2Cor 5:17-18
The fact is that God makes every one of us who trust in Christ to be completely different than we were before. Our old way of conducting our lives is gone. We now have a completely new way of conducting our lives. This complete change in our lives is all something that God does. It is God who made it possible for us to have a peaceful relationship with him. He was able to do that because of what Christ did for us.
About the old versus new you in Rom 7:24 - 8:6
What an agonizing situation I am in! So who has the power to rescue this miserable man from the unwelcome intruder of sin and death? I give all my thanks to God, for his mighty power has finally provided a way out through our Lord Jesus, the Anointed One! So if left to myself, the flesh is aligned with the law of sin, but now my renewed mind is fixed on and submitted to God’s righteous principles. So now the case is closed. There remains no accusing voice of condemnation against those who are joined in life-union with Jesus, the Anointed One. For the “law” of the Spirit of life flowing through the anointing of Jesus has liberated us from the “law” of sin and death. For God achieved what the law was unable to accomplish, because the law was limited by the weakness of human nature. Yet God sent us his Son in human form to identify with human weakness. Clothed with humanity, God’s Son gave his body to be the sin-offering so that God could once and for all condemn the guilt and power of sin. So now every righteous requirement of the law can be fulfilled through the Anointed One living his life in us. And we are free to live, not according to our flesh, but by the dynamic power of the Holy Spirit! Those who are motivated by the flesh only pursue what benefits themselves. But those who live by the impulses of the Holy Spirit are motivated to pursue spiritual realities. For the mind-set of the flesh is death, but the mind-set controlled by the Spirit finds life and peace.