So you disregard His commands to His followers.
Not at all.
Apparently not.
What does it mean to be a "follower" of Christ? Does it mean that you literally go everywhere He does? No, it means that you DO what He commands.
What does it mean to be a "disciple" of Christ? It means you receive His teaching. And you can't really receive someone's teaching without actually doing it.
What does it mean to be a "believer" in Christ? It means that you think what He said was/is true. And it means that you accept the facts of His birth, life, death, and resurrection, and expect that what happened to Him in death, He can and will do for you.
This whole post has tried to make a dichotomy of belief in Jesus vs obeying His authority. I don't think such a dichotomy truly exists.
But you are asking a different question--whether our works save us. And the answer is "No"? If we have indeed all sinned, as Paul said, then we all are faced with the guilty verdict and the wages of sin-death.
Think of it this way, if you lived all your life without breaking a single law, but then you murdered someone, but weren't caught and managed to live another 10 years or so without doing anything else wrong--how "unguilty" are you, based on your good life? Could you go before the judge and say, "It's ok, I didn't do that crime (of murder), because I never did it or anything else bad before or since"? The judge would then say "Guilty as charged!"
So something different has to happen to counter our sin and prevent us experiencing the wages of sin. That thing is the sacrifice of Jesus Christ. It's not just going back to being good!
So to suggest that following all the words of Jesus is what saves us, is only true when you include the part where He says to believe in Him to have everlasting life. But I think it is just as true that if you say you "believe" in Jesus, but don't want to do what He commanded, like "Love your neighbor as yourself" (which doesn't seem to be very evident around here), or "Don't look at a woman to lust after her", then you don't really believe in Him.
Certainly we can't say that Christians never sin. Or John and Paul both wouldn't have allowed that we do sometimes.
But that doesn't mean we do every act of sin we can think of and expect forgiveness. "My little children, these things write I unto you, that ye sin not."[1 John 2:1] But if we do sin, we are to confess it and stop doing it ("repent").
Nor does it mean we have to think of ourselves as somehow unable to break away from sinning. We are no longer slaves to sin. I don't think "God's Truth" was correct in saying the Paul's struggle with sin in Rom 7 was before he believed (because he was obviously wanting to do the things against the church he was doing, and he made a point to say that in his mind he obeyed, but in his flesh he didn't). But that doesn't need to be our excuse for not endeavoring to put to death our fleshly lusts: "So then, brethren, we are under obligation, not to the flesh, to live according to the flesh" [Rom 8:12]; rather "For all who are being led by the Spirit of God, these are sons of God" [Rom 8:14]. There's that idea of "following" again. If we are "led" by the Spirit of God, will we be doing things contrary to His will? Of course not--how foolish of some to think that while they are really following the Spirit's leading, that they will be sinning.
John's admonition is a picture of the Christian's walk: "Don't sin! But if you do sin, you have an advocate in Jesus Christ."