Success should be viewed is meeting tangible, measurable goals. Success is not the ultimate goal. If choices are not made and the control not taken, then nothing can happen. Becoming elite takes courage and control. Basking in the past won't work or identifying with the Olympics won't work unless competitor has the courage and will to develop.
Most athletes opt out before they reach goal.
Getting better physically will help athlete become better. Confidence with competent is disillusion. Confidence is a choice. Base confidence on output from performance, not on medal. Confidence is an independent experience.