Paul had a lot to say about joy in his letter to the Philippians. He also had wisdom and instruction regarding anxiety because he knew from first-hand experience how intertwined they were.
Anxiety wants to steal your joy.
Paul had trouble in this world (2 Corinthians 11:15-29), but he took heart because he knew the one who had already overcome the world- Jesus Christ (John 16:33).
Today’s PIC is a powerful word for whatever is troubling you today–

Whatever your trouble, don’t allow that thief to steal your joy-
Give it to the LORD in prayer. He is mighty to save!