What separates us from the unbeliever in our sin? It isn't "big" sin or "little" sin ... it's just plain ordinary sin.
For the believer, we don't recognize the things we do as sin, but they are still sins. Anything we do that separates us from God's Presence is a sin. Some are "hidden" sins ... hidden in the heart, taking place on the inside, and are the ones that we don't deal with.
If you look at the attitude that they're done in, you'll recognize them as sin. The only ones who know that these things you do are sins are you and God ... and the Holy Spirit convicts you of it.
We are no longer the "old man" ... we are now the "new man". Sin doesn't happen in our spirit realm (our new man). It occurs in our soulish realm (our outer man) ... our mind, out will, and our emotions. This soulish realm is where our battleground is.
We become more conscious of the devil and the sin that he's doing in us than what God has done and is doing in and for us. God doesn't see us as "sinners". We see us as sinners, and we get all caught up in, "I really made a mistake today!" OK ... repent get over it! Move on! God isn't concerned about it. And you shouldn't be either!
Reverend Robert W. & Mary C. Butler