In this verse Paul speaks of sin as though it were some personal force that takes hold of a man’s life and controls it.
So I am not really the one who does this thing may be rendered as “so I myself do not do this thing” or “so I am not the person doing this.”
It may be necessary to specify precisely where sin lives within the person—for example, “the sin that lives in my heart.” In this way sin is presented as essentially “the desire to sin.”
Quoted with permission from Newman, Barclay M. and Nida, Eugene A. A Handbook on Paul’s Letter to the Romans. (UBS Handbook Series). New York: UBS, 1973. For this and other handbooks for translators see here .
