So if anyone is in Christ, there is a new creation: everything old has passed away; see, everything has become new! All this is from God, who reconciled us to himself through Christ, and has given us the ministry of reconciliation; that is, in Christ God was reconciling the world to himself, not counting their trespasses against them, and entrusting the message of reconciliation to us. So we are ambassadors for Christ, since God is making his appeal through us; we entreat you on behalf of Christ, be reconciled to God. For our sake he made him to be sin who knew no sin, so that in him we might become the righteousness of God. (2 Corinthians 5:17-21, NRSV)
We are new creations in Christ!
The old sinner has been recreated into a saint able to stand in the presence of God!
He became what we were to make us what He is, and in Him we are new creations.
So live in the new you in Christ and not your old self.
Live the life Christ has given to you!