All the sins are forgiven but we remain sinners (justified sinners) as long as we live on this earth and in these bodies. To be sinless implies that one cannot sin anylonger - and that's just not true:
1Jo 1,5
And this is the message which we have heard from him and announce unto you, that God is light, and in him is no darkness at all.
1Jo 1,6
If we say that we have fellowship with him and walk in the darkness, we lie, and do not the truth:
1Jo 1,7
but if we walk in the light, as he is in the light, we have fellowship one with another, and the blood of Jesus his Son cleanseth us from all sin.
1Jo 1,8
If we say that we have no sin, we deceive ourselves, and the truth is not in us.
1Jo 1,9
If we confess our sins, he is faithful and righteous to forgive us our sins, and to cleanse us from all unrighteousness.
1Jo 1,10
If we say that we have not sinned, we make him a liar, and his word is not in us.
That's Gods grace: we can go to Jesus with all our sins and he will forgive us all our sins and cleanse us from all unrighteousness.
There is only one place when there will be no more sin and where we will not sin any longer (Revelation 21)