Then you don't know if you still sin. You just haven't in a while. Please know that's true of all born again Christians. The length of time between offenses is hardly the criteria for not sinning anymore.
And besides all that, there are different reasons why born again Christians still sin - immaturity, lack of vigilance, carelessness, foolishness, thoughtlessness, lack of foresight, lack of knowledge. Some of these reasons disappear as we grow up and mature in our knowledge and experience in the Holy Spirit. Some are never going to disappear. Being caught unawares and without malice aforethought will always be a potential cause and source of sin for even the most mature born again believer.
I consider the claim of the born again person to be sinless to be on the opposite extreme of claiming that one is still a sinner. While both can be explained, I think it unwise to take either position.
Are you under the doctrine that "sin is sin"? The Reformation dumbed down what the people of God knew all the way back to when they received God's laws, that there are two types of sin. Even the Catholics know that and call them mortal sins and venial sins. In one post you mentioned a man raging. That has to do with self-control. Which type of sin is that? A sin unto death, or a sin not unto death? Is it willful or unintentional? Rage can be unintentional, but if we
abide in Christ, even the lack of self-control that produced the rage will be matured in us by Christ, NOT US.
Just so you know, I CAN'T commit a sin unto death like adultery. When Jesus cleansed my nature that produced that sin, I was free from it in an instant, not like the process of maturing the fruit of the Spirit that can cause rage. Our clean nature makes us sinless/righteous. But that is far from perfect/holy. What John calls righteous is freedom from sins unto death. Those are the only type of sin in 1 John 3:9 that he is speaking of. And immature fruit that causes unintentional sins not unto death are the only type of sin that 1 John 1:7 is speaking of. See below.
9 Whoever has been born of God does not sin, for His seed remains in him; and he cannot sin, because he has been born of God.
7 But if we walk in the light as He is in the light, we have fellowship with one another, and the blood of Jesus Christ His Son cleanses us from all sin.
What the Reformation did which caused their doctrines of defeatism, is add sins
not unto death to 1 John 3:9 causing them to have to add "practice" to the verse so they could rate to it themselves as righteous. And adding sins
unto death to 1 John 1:7 causing their next false doctrine that Jesus cleanses us of our "past, present and future" willful sins unto death which are only cleansed
once from our past only. No one obeys Paul who said to reckon ourselves free from sin (
unto death), lest we commit sin (
unto death). Even you dismissed me for doing so.