... If God is for us, who can be against us? Romans 8:31
To take some time each day to get the revelation of your righteousness in Christ deep into your spirit. Meditate on it and declare it every day. It will put courage in your heart and bring an unshakable peace to your soul. It will energize your faith when you pray and give you a confident expectation to receive good things from your heavenly Father.
I believe that's why our heavenly Father, in knowing the things that we need daily, tells us not to worry about them. What are we supposed to do then? We are to seek first "His righteousness" - the righteousness that He has given us - and all the things that we need will be added to us.
When you know that your right standing with God always puts Him on your side, every fear will melt away like butter on a hot day. For it God is for you, who or what can successfully prevail against you?