It's written that we "are dead to sin" (
Rom 6:2,
11;
Col 3:3 ) via the sin nature (old man) being co-crucified with Christ (
Rom 6:6), but nowhere is it said to be dead to us. If it were would we still sin? Would there still be a need for its members of our sin nature ("body of sin" -
Rom 6:6) to be "mortified" (
Col 3:5,
8). Would the Spirit of God be opposing it in us (flesh; sin nature -
Gal 5:17)?
Not saying this of you personally, but believing we no longer sin is a tail-chaser, of which I didn't learn until 12 years or so into my 40 years of being reborn.
I like the above passage you've indicated (Rom 7:5), very subject-applicable, and I've included this comment for anyone it may interest:
"The motions of sins which were by the law, did work in our members to bring forth fruit unto death": by "the motions of sin" are meant, the evil passions and affections of the mind, the lusts of the heart, sinful desires, evil thoughts, the imaginations of the thoughts of the heart, the first motions of the mind to sin: these "were by the law"; not as the efficient cause of them, that neither produces nor encourages them; it is holy, just, and good, requires truth in the inward parts, and not only forbids the outward acts of sin, but even covetous desires, and lustful thoughts:."
"These inward motions of sin arise from a corrupt heart and nature; are encouraged and cherished by the old man that dwells there; and men are enticed by Satan to a compliance with them. Some think that the meaning of the phrase is, that these secret lusts of the heart are made known by the law, as in
Romans 7:7, so they are, but not whilst a man is in the flesh, or in an unregenerate state, but when he comes to be wrought upon powerfully by the Spirit of God, who makes use of the law to such a purpose." -John Gill
By the revealing of sin, it "became exceedingly sinful," that is, enhanced (
Rom 7:13)!
(more of this comment:
Romans 7 Gill's Exposition)
God's blessings to you!