The Litany against fear is a fictional incantation spoken by characters in Frank Herbert's Dune and sequels in order to focus their minds in times of peril. The litany is as follows:
"I must not fear.
Fear is the mind-killer.
Fear is the little-death that brings total obliteration.
I will face my fear.
I will permit it to pass over me and through me.
And when it has gone past I will turn the inner eye to see its path.
Where the fear has gone there will be nothing.
Only I will remain."
This has worked for years for me. It still does. YMMV.