I don't wake up in the morning and think: "What's Kylie doing? What am I doing? Who's better? Who's doing more?"
If this supposed fashion war between Cheryl [Cole] and me is the worst part of my life, then everything's OK. A friend of mine has just finished a course of chemotherapy - that's important, not what I wear to auditions.
I did Playboy for a lot of reasons. I'd gone through a marriage break-up, it wasn't the happiest time of my life, and it seemed the right thing to do. It was very liberating - you have the freedom to do whatever you want, the shots were tasteful, and they give you stacks of money.
Sharon [Osbourne] has given many interviews and been very vocal about how she feels about me. I haven't really got involved because there was no argument to be had; my crime was being on the show. It's disappointing because I was a massive fan of hers.
I grew up on a kids' TV show, so I had my fame before Kylie and she was always "Dannii's sister", so we've both had a bite at the cherry.
Sometimes I use stylists, sometimes I work with designers. If you liked what I wore, it was all me; if you didn't like it, it wasn't my idea.
I'm not a shopper. My boyfriend loves shopping, so I have to go with him to get brownie points, but I sit in the store drumming my fingers.
I had Botox a while ago. I had it, it's fine - I just choose not to do it now.
If I get stuck halfway getting in or out of clothes I absolutely freak. I don't like spiders, but if I had to deal with one I'd be less panicked than I would being stuck inside of a jumper.
Mum and Dad always said you had to have something to fall back on, so I worked really hard and was A+ at everything, and when I was offered a recording contract I took the opportunity. Their advice kind of backfired: now they have two daughters living on the other side of the world.
It took seven years to feel comfy here. You've got to have that time with friends so you can look back and say: "Remember that time when...", then it feels like a pair of jeans nicely worn in.
The biggest myth about Australia is that it's always sunny. I remember being on set in Home and Away in winter, on the beach, freezing in a bikini, and I asked the producers if we could have different wardrobe in winter. A note came booming back to all cast members, crew and production: "It is always summer in Summer Bay."
I never watch myself on screen. God no. My friends send me YouTube clips from Young Talent Time saying: "This is hysterical." I say to them: "OK, I'm going over to your mother's house, I'm going to find the photo albums, scan the pictures and drip-feed them to you weekly on an email going: 'Isn't this hysterical?'"
My brother thinks Kylie and I are mad. He's a cameraman, happy to be behind the camera.
My sister is the carbon copy of my mum, my brother's the carbon copy of my dad, and I'm the hybrid. I've got the sensibilities of my father - a real sensible side - and Mum used to be a ballerina so she has this artistic, floaty, feel to her. When she comes to the shows, she loves it all - maybe it's what she would've ended up doing if she hadn't had kids.
I have no regrets at all. I wouldn't change it for anything, and I can't speak for my sister but I know what makes her tick and bubble, so I'm sure she would say the same thing.
• The X Factor returns to ITV1 later this month
