Things like reading a book or learning a language, or taking a walk - they're not stimulating. Your mind has to sort of learn how to deal with that kind of stimulation on its own. So that's a very important form of adversity.

Nobody that I know really likes the feeling of having no power and not being able to influence people. But most of us aren't too conscious of what we are trying to do and get that control and that power so people end up sort of playing all kinds of unconscious manipulative games or they're sort of half aware, they have an idea of a strategy or goal they want to use and they think about it. But then in the heat of the moment, it kind of all flies out the window.

Because of my two films - one was about my half-sister (Kati with an I) and the next one featured my cousin (Fake It So Real) - I was hesitant to start with someone so close.

The pyramid would start at the bottom: you don't know who you are or what you're intended to do in life. And so, the X factor - the ingredient that will make you powerful, that will make you successful is your energy and drive and your tenacity. If you've got that, there's nothing in the world that's going to stop you.

We're selfish to some degree, that's not a criticism and it doesn't mean that we are all narcissists. But in any situation our minds naturally evolve to what's in it for me? How does this affect me? Can this benefit me? Can this harm me? Then we might move on from that and have a more altruistic point of view about things but that's almost always our initial response.

There's spatial intelligence. they're, which end up being, people going into math or music. there's mechanical where you work well with your hands. There's an intelligence with language that would lead someone into writing. So it's not necessarily that you're six years old and you know you're going to be a lawyer Or you're going into tech startups or computers. It's something more elemental than that. It's that this is a skill, a way of thinking that comes naturally to me that I was drawn to and it was very clear in childhood.

Think of it this way: There are two kinds of failure. The first comes from never trying out your ideas because you are afraid, or because you are waiting for the perfect time. This kind of failure you can never learn from, and such timidity will destroy you. The second kind comes from a bold and venturesome spirit. If you fail in this way, the hit that you take to your reputation is greatly outweighed by what you learn. Repeated failure will toughen your spirit and show you with absolute clarity how things must be done.