"I want someone to set me free from the control of what my body desires" (UDB). If your language has a way to show that both the exclamation and the question are highly emotional, use it here. (See: [[rc://en/ta/man/translate/figs-rquestion]])
The mind and flesh are used here to show how they compare to serve either God's Laws or the principle of sin. With the mind or intellect one can choose to please and obey God and with the flesh or physical nature to serve sin. AT: "My mind chooses to please God, but my flesh chooses to obey sin" (See: [[rc://en/ta/man/translate/figs-metaphor]])