Paralympic champion Liam Malone says developing a high level of discipline has been his greatest achievement over the past couple of years.
He has returned home from Rio with two gold medals and a silver medal from the athletics programme.
The 22-year-old is originally from Nelson, but now studies in Auckland.
Malone told Checkpoint with John Campbell that, as a 19-year-old, he was struggling with the death of his mother a year earlier.
He had to find something that was fun and would override his life, and setting goals allowed him to achieve that, he said.
Malone trained every day for two years before Rio, mostly on his own in Wellington with his coach in Nelson, and said that learning to be that disciplined was the hardest thing he had ever done.