The life of Jeremiah was not an easy one for much of it.  But he remained faithful and did not run away like Uriah did.  Uriah was killed and some of that may have been because he did not remain faithful like Jeremiah.  But what is significant is that God protected Jeremiah even in the face of great adversity.  And God can protect you.  So do not be scared or timid in sharing your faith, just like Jeremiah did.