God uses us to impact others.
Lord, give us a ministry where the sun will never set.
When a person is carrying their sin, it can be quite a load...I don't know what else to do with your sin but confess and ask God to forgive it.
You must emulate the truth you exhort.
You can know you're a Christian if, not are you dealing with your sin before God but is God dealing with you about your sin.
Until you start thinking right, you will never start behaving right. Repentance always deals with the changing of the mind.