It is at this point where you dropped the end of thread you were holding, and by doing so you have lost it.
There is a difference between Flesh as being your physical body of Flesh and blood, and "The Flesh" "The Old Man" "This Body of Sin" that Paul speaks about.
When Scripture says.
Gal. 2:20
I am crucified with Christ:
nevertheless I live;
yet not I,
but Christ liveth in me:
and the life which I now live in the flesh I live by the faith of the Son of God, who loved me, and gave himself for me.
Were you Physically in the Flesh Crucified with Christ?
NO, but your Inner man, the Old Man was
Rom 6:5,6
5) For if we have been planted together in the likeness of his death,
we shall be also in the likeness of his resurrection:
6) Knowing this,
that our old man is crucified with him,
that the body of sin might be destroyed,
that henceforth we should not serve sin.
You must understand the separation of the two, One is a Physical Body, the other is the Spiritual Being.
It is not the Physical Body which Sins, but the Spiritual one.
God told Adam.
Gen 2:16,17
16) And the LORD God commanded the man,
saying,
Of every tree of the garden thou mayest freely eat:
17) But of the tree of the knowledge of good and evil,
thou shalt not eat of it:
for in the day that thou eatest thereof thou shalt surely die.
Did Adam fall down Dead the day he ate the forbidden Fruit?....No
Was Adam Spiritually Dead to Communion with God?.....YES
The understanding of the two Fleshes seen for the first time.