According to 2 Co 5:17 if you are in Christ Jesus, you are a new creation; old things have passed away and all things have become new. This scripture refers to the rebirth that occurs once you accept Jesus as Lord and Savior. You see God did not refurbish your spirit. Rather he gave you brand new spirit at the point of new birth. Your new spirit is united with Christ, it is one with Christ. As a result of this union with Christ, your new spirit is superior to your old spirit. Afterall you are seated in heavenly places in Christ Jesus - Eph 2:6.
Your superior positioning comes with various benefits including the restoration of the blessing and your dominion. Another benefit of your new position is that the process of rebirth resulted in all the claims against you being wiped away. God essentially wiped away all your sins. This is what the phrase 'all things have become new' refers to. You have been given a clean slate. In God it is as though all the sins you committed before you became born again did not exist.
However for you to truly live in the manifestation of the freedom which you have now be given, you must let go of the past. You can learn from the mistakes of the past but you must not focus on the past. God made all things new so that you can be free of the past as you position yourself for your glorious future. Friend don't be limited by your past, rather invest today for your outstanding future. Your world is awaiting your manifestation - Rom 8:19.