No Need to Rehearse

In my Bible study this morning, the author is talking about rehearsing our troubles being like experiencing them over and over.  That is certainly not necessary.  Why even bother praying about them, if we continue to relive them?

Joshua 1:5,9 reads, “No one will be able to stand up against you all the days of your life.  As I was with Moses, so I will be with you; I will never leave you nor forsake you…Have I not commanded you?  Be strong and courageous.  Do not be terrified; do not be discouraged, for the Lord your God will be with you wherever you go.”