We should ask your family and friends if you are sinless.I consider that a false doctrine.
Men are sanctified by the application of Christ's atoning, redeeming, consecrating, sanctifying blood.
That all happens at water baptism into His death.
There is no need for witnesses of your sinlessness, because the Lord's written word teaches the opposite of your heretical beliefs.
I can only pray that the Lord takes out your heart of stone and replaces it with a heart of flesh.