I see some of the clothes from the '90s is back in fashion. That really freaks me out because that's when I grew up.

I used to go to rave parties, too, but I was never savvy with techno.

The good thing about having a kid is you don't think about that as much. Like when I turned 30, for instance, that was much more momentous. Forty is particularly great for a woman. It's a big thing.

How competitive am I? A healthy amount. I have four siblings. It was competitive just eating dinner, like, "Everyone, get what you want from the chicken." Plus competing for your parents' attention.

What has surprised me most about being a celebrity is the fascination with pregnant women. After I had Rocco, the paparazzi came and sought me out. I never had that before. There's a whole industry, literally, based on people having children. I guess because you're changing, putting on weight. It makes me very uncomfortable. I didn't enjoy that much at all.

The concept of growing up is so hard to quantify. What have you learned and how have you changed and how have you stayed exactly the same? As I get older, it's something I reflect on more and more. Especially as the generations go on. We wait longer to have families, we wait longer to have responsibilities. Everyone used to be married by 20 and pregnant immediately.

Healthy aggression is good, but I think social media can perpetuate that in the worst way. You have to be careful about comparing yourself to others. You can never be somebody else. You will only be yourself, and that's what's great.