It took me a while, but I count, in my Strong's concordance, 81 times we are told to FEAR NOT. Then there are at least 48 times that the command to BE NOT AFRAID is given. Many times these are followed by the enjoinder to be anxious for nothing or be of good cheer.
If God repeated Himself that many times, don't you think that he meant it?
Medicine has found that when we are are worried, our bodies release stuff which actually attacks itself causing all sorts of physical maladies.
Just leave God's stuff to HIM and you won't have anything to be afraid OF!
God wants us to tell Him how we feel and then let go of it. He wants us to know that because He loves us and is in control of our life, we do not have to live under a cloud of overwhelming doom or anxiety.