“So then, with my mind I am a slave to the law of God, but with my flesh I am a slave to the law of sin” (Rom 7:25). Earlier the “mind” was the “inmost self” (7:22), so when speaking of “mind” we are dealing most probably with the Eikonic nature of humans, and with the “flesh” the cracked Eikonic nature of humans.
The rock-bottom reality for Paul is that the war is on (or was on); I think Wright would say the war Israel had with the Torah recapitulates Adam’s own war, and is recapitulated by each human. (Not sure on that one.)

Is the “law of God” the Torah and an underlying, deep human principle? Wright says it refers to the Torah.
According to Wright, the “I” means “I, Paul, as part of the solidarity of Israel according to the flesh” (572).
What is the answer to this dilemma of having the Torah but not being able to do it? The answer is chp 8: What “I” could not do, God “did” — in Christ and through the Spirit.