We are humans, born into this world (Earth) and having all kinds of experiences. To live on Earth, you (your soul) needs a physical body. Part of the eternal divine plan is that we grow spiritually to become perfect like our heavenly Father is perfect. It is your soul that grows spiritually.
Your spirit does not grow spiritually. Your spirit is already perfect - your spirit is given to you by God (Ecclesiastes 12:7). Your spirit comes directly from the Father, perfect. When the scripture says we are created in the image and likeness of God, the actual meaning is that we have been given a spirit that is literally in the very image and likeness of God. This is the gift from God the Father to human beings. This spirit (Job 32:8) is given to us to lead us "Godward" - heavenward; to assist us (our souls) to become born again and also to grow to become perfect as God the Father is perfect.
No where does God say your spirit can die or shall die. No where. Please, why? Your spirit is God the Father's spirit within you - perfect and sinless; seated on the throne in your Holy of Holies within. At death, it returns back to God who gave it (Ecclesiastes 12:7). This is why there's nothing like a re-created spirit. It is your soul that gets born again (or re-created, if you want to use that word) NOT your spirit. It is also your soul that will either die (lake of fire, second death) or at resurrection, be reunited with your spirit (the spirit that went back to God who gave it) and go to heaven in a heavenly or celestial body.
Job 32:8, "But there is a spirit in man, And the breath of the Almighty gives him understanding."
Ecclesiastes 12:7, "Then the dust will return to the earth as it was, And the spirit will return to God who gave it."
1 Corinthians 15:40, "And there are heavenly bodies, and earthly bodies: but different is the glory of the heavenly, different that of the earthly."
Ezekiel 18:20, "The soul who sins shall die..."
Revelation 20:14, "And death and hell were cast into the lake of fire. This is the second death."