Jesus paid the price for the sins of the whole world, according to scripture; all the sins at the cross were from human perspective in the future but He canceled them for the whole world and all of the creation; to realize He has canceled all your sins allows you to be counted among the righteous knowing ONLY God is 'big enough' to pay such a price, and we are bought with a price, but unless you believe/FAITHE He has done this for you you will not receive the Gift of God in Christ Jesus
No one comes to Jesus except the Father draws them,; He is the author and finisher of our faith, our faithing, thus it is not possible to snatch our self from His hands; born again in the spirit makes us in a new family, where the righteousness of Christ is imputed to us; in that state of righteousness we can only be faithful children of the Eternal Father, unruly children, or rebellious children, but no one is able to be unborn. Thanks be to God