Complimentary to that I’d include The Brave Athlete
Extremely readable and amusing husband and wife team with their take on The Chimp Paradox
idea popularised by Dr Steve Peters
This is a great read for getting my head in order. The section on injury and mental health was probably my favourite.
At the moment I don’t use a mantra, I try to break down the interval by percentages. Given how weak I am at maths ordinarily, I end up distracted enough to get through 