I agree with your first paragraph, but your second paragraph doesn't apply to Christians. Unfortunately you're taking what Paul said out of context. Paul's writing in Romans 7 describes the state of someone who has not yet accepted Christ and is still under the Law. It doesn't apply to those of us who are "born of the Spirit" and are not subject to the Old Testament law.
I disagree. Paul admitted that he wanted to do perfection yet he was actually doing the opposite. I took nothing out of context but was showing that no matter how much we strive to be as perfect as Christ, we will never make it until we get to heaven. We still have that human nature which we fight against daily.