Double gold medal winner Laura Trott said she still feels like "a 10-year-old kid" despite her Olympic track cycling success.
The 20-year-old, from Cheshunt, Hertfordshire, said taking both the titles was "surreal" and that she had been unsure whether her win at the Track Cycling World Championship in Melbourne earlier this year was just by chance.
"It still feels totally surreal for me, I still can't believe this is happening, I'm just a 10-year-old kid," she said.
"I didn't know whether I just fluked it in Melbourne and whether I could beat them all again. So it's just amazing, especially to do it in front of a home crowd."
She has overcome asthma and other health problems that she has suffered from birth to pursue her cycling career.
Trott said that the way the British team examines the sport in tiny detail is the secret to their success.
"It's just dedication and we look into the smallest of things. Three years out we're starting looking into things, not three months out, it's small things that make the difference for Great Britain."
The competitors sleep on special mattresses and pillows, they have air filters in their rooms, and wear special cycling shorts because the temperature of their muscles is a key factor in performance.
Trott, who won two gold medals in three days, was speaking at a press conference alongside six times gold medal winner Chris Hoy.
He said: "It's amazing what Laura's done physically and the times she was doing and the performances, but not just that, she's come into an established team with experienced athletes and she hasn't just squeaked on to the team, she's stormed on to the team."