Is that because of myself, or any inherent righteousness of my own, or due to anything I did, or could do? No. In myself, I am nothing and have nothing. No righteousness, no strength, no hope. I am, in myself, bankrupt, destitute, wretched, miserable, poor, blind, naked, wicked, contemptible, condemnable and damned. As you are. In that respect, you are I are no different.
I am in Christ. Now and forever. God has declared me as having died with His Son, having risen from the dead with His Son, and am seated at God's right hand in His Son. Because of all that -- because of what He did for me -- I have been forever separated from sin and from God's condemning Law.
So no...I, the new, real me that has been created in Christ, is not a sinner. That is the only "me" I'm to give any thought to because that's the only "me" God now sees.