As a kid growing up in a rural area, I was always tinkering with parts and machinery.

I'm from Minnesota and have always lived there. And my competitive career actually started in the late '90s racing motocross, which then turned into racing snowmobiles professionally. I turned pro in 2003, racing with the best in the world and living my dream as a professional athlete.

Building prosthetics that allow people to get back to the fun activities in life is as rewarding a job as I can imagine. It's just as fulfilling for me as winning at the racetrack.

I bought my first dirt bike when I was 12, and I started racing motocross when I was 15 and started getting pretty successful. Then I started racing snowmobiles at 17 and decided I wanted to focus on that and see if I can make a career at it.

I'm quite stubborn, and it's hard for me to let people in - whether that's literally, musically, or with business and work.

I have won 85 caps and have had a great career with Wales and have enjoyed every minute of it.

My mother was a mother. She didn't really work, apart from bringing us up, which a job in itself, but at an age where lots of people are thinking of retiring, so is having up to 20 or 30 engagements a day, and she's brilliant at it - she has always been brilliant with people.

What I've learned in my career is that it takes the same amount of effort to build a $10bn company as it does a $1bn company; you as the entrepreneur are going to put your entire life, your entire effort into it.