There seems to be a lot of things in this world to be anxious about these days. . .I'm sure you would agree.  A scripture that really helps is found in Philippians 4.  It's verses six and seven and says, "Be anxious for nothing but in everything by prayer and supplication, with thanksgiving, let your requests be made known to God; and the peace of God, which surpasses all understanding, will guard your hearts and minds through Christ Jesus."  If we truly believe this, we will have God's peace in our lives and not be anxious or worried about various challenges in our lives.  The next verse instructs us to think on things that are true (God's word is truth), noble, just, pure, lovely, good reports, any virtue and anything praiseworthy.  If we do these things, really do them, we can be assured of a peaceful and non-anxious life!