Most assuredly, I say to you, unless a grain of wheat falls into the ground and dies, it remains alone; but if it dies, it produces much grain. He who loves his life will loose it, and he who hates his life in this world will keep it for eternal life.
You have taken the first step - you are letting the old man die. You have asked for and received a new identity from God. The new creature is like a man sitting in his attic sorting through old and new.27 He must pick and choose the things he wants to keep and throw away the things he no longer wants. The things of the evil nature, he throws out. He wants them burned or destroyed.28 The Godly things he retains.
The next step is to terminate all liabilities of the old man and keep the new man unspotted from the world.29 When a man dies, he often leaves bills unpaid, accounts still open, and loans outstanding. The executor of his Last Will and Testament must take care of these obligations, paying off or settling with all creditors. This process is called probate.30 When we die of the world and are reborn into the Kingdom of Heaven, we must also settle the accounts of the old man. We call it probating the old man.
During the probating period, you will wear two hats. You will need to act in the old man's name to complete outstanding obligations. You may need to sign the old man's name to finish prior commitments, but avoid making any new commitments in the old man's name.
27 - Matthew 13:52
28 - Matthew 5:29, 30
29 - James 1:27
30 - probate matters - Matters pertaining to the settlement of estates of deceased persons, Black's Law Dictionary, Fourth Edition.