Every athlete has the need to continually challenge himself or herself, a struggle that requires hard training and help to that needs hard training and help to optimise personal performance through mental training. through mental training. Self-knowledge seems at first glance to be a simple simple, but it is not. It consists of learning about oneself, how we react in certain situations and why, in situations and why, when I feel more confident and when I feel less confident, what makes me feel more confident and what makes me feel less confident, what makes me feel more confident and what makes me feel less confident. what causes me to lose my concentration and what strategies I can put in place to solve it. strategies I can put in place to solve it.