Interview with Jessica Ennis-Hill at Rio 2016 Olympics PART ONE

The speaker reflects on the emotional and physical challenges faced over the past few years, expressing pride and happiness in achieving a silver medal. Despite stepping away from the sport to have a child, the speaker returned to compete and is satisfied with the outcome. The journey has been the hardest in their career, making the achievement even more rewarding.

What does the speaker mean by saying the journey makes the achievement sweeter?

In what ways did the speaker's experience over the past four years impact their perspective?