I’ve never much cared for that phrase.
Galatians 2:17 However, if in our quest to discover righteousness by faith in what Christ did for us, we find that it is still possible to stumble; do not now label yourself a sinner yet again! The fact that you sinned does not cancel the cross of Christ and gives you no reason to abandon justification by faith as if Christ is to be blamed for your distraction! That would be absurd! (Now all of a sudden you want to keep the law again to further add to your righteousness as if Christ did not achieve enough. Do not let your experience deceive you to invent a new doctrine.) The Mirror
I take absolute comfort in knowing that I don’t have to ever label myself a sinner again. When I mess up it doesn’t disqualify me. There are promises that He has made. He doesn’t break promises, when I confess to Him He restores me from all unrighteousness. When I confess to my brother He heals me. The cross is never canceled.
Thank you that I don’t have to be perfect. It is no longer I who live but Christ who lives in me.
2:19 My co-crucifixion with Christ is valid! I am not making this up in his death I died to the old system of trying to please God with my own good behavior! God Made Me Alive together with Christ. How can any human effort improve on this!
Matthew 6.6 
Most times when I hear someone say “sinner saved by grace”, they also add “I’m just a sinner saved by grace”. It communicates an attitude that I’ll never measure up, never be enough, or never be more than what I am.
Jesus calls us out of darkness, despair and depression so we can be light!
Hebrews 6:1 – “Therefore, leaving the discussion of the elementary principles of Christ, let us go on to perfection….”
Perfection is being the most perfect you that you can be.
Because Jesus chose the cross, I can choose to live.
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