As a tennis player, or any professional athlete, our career has a shelf life. I don't want to waste any opportunities, I don't want to look back on it when I'm 45 and think I could have done a lot more.

I didn't know I could even be a professional tennis player, honestly. All this is actually very, very unexpected.

A lot of times when I'm confident and relaxed on the court, I'm going to be a pretty tough out. But when I'm not so confident and not so relaxed, I tense up and my balls fall short and everything. It just sort of unravels.

In the past, I've played where I only just rely on my serve.

Traditionally, in the technology industry, companies need to re-invent themselves every 3-7 years to survive. If the company misses one transition, it can still recover, but if it misses two, it is usually fatal.

I was told at first that being different was a bad thing. Everywhere I went, it was just, 'You're too different'... And it turned out that being different was the best thing that ever happened to my career. It is why people travel to my shows. It's why people want to hear my story and buy my book.

But I've married a deeply sensible person who is extremely good at talking me down from my various ledges, and who takes care of me in a billion ways.

I love seeing my husband having success.