Allie Barrett (@allie barrett0) is a senior at Chelmsford High School, but also a professional model who has booked gigs that pros 10 years her senior can only dream of. Most notably, a whirlwind casting landed Barrett at the center of the new house of Gucci last spring, under newly appointed creative director Alessandro Michele, resulting in participation in runway shows and campaigns, including director Glen Luchford’s nouveau-psychedelic cruise campaign dance party.

Q. What’s it like being in high school while living this double life as a model?

A. You go to school and people will be like, “I saw what you posted on Instagram, and it’s so cool.’’ And they want to ask about what you’re doing and how everything’s going and how you got into it. I don’t mind that part, but catching up with school and everything I’ve missed is something I’m learning to deal with now. These last three weeks was probably the longest time I’ve been away.

Q. What’s your post-graduation plan?

A. I’m going to take a year off, but I’m still applying to school in New York. I think I want to be a journalist. After I traveled and was meeting all these different people, I realized that I wanted to write about it and the places that I had been. I think I have a perspective on things that could offer something else to that type of job. Right now, I keep a journal. I bought one the first time I was in Milan and I write in that almost every time I travel. I want to remember all the stuff I felt when this was happening.

Q. What’s your favorite subject in school?

A. I love history. I’m really into politics lately because I’m going to be able to vote in this upcoming election. I’m taking international relations and actually just learned about the conflict in Syria today so I was telling my mom about that earlier. I think that after traveling so much, I felt really ignorant talking to people about politics in their countries. They would talk about different things happening to them, and I couldn’t relate because I didn’t know anything besides barely what was happening in the United States. You have to be worldly to have good conversations with people from other countries.

Q. You also got to walk in Chanel’s spring show. How did that happen?

A. They had us all trying on looks and I got really nervous because I tried on one look that didn’t look right so they had me put on the jumpsuit I ended up wearing. And I went in with another girl in a similar outfit and they were like, “OK, walk.’’ So we both take off at the same time and she’s turning at the end of the runway, I’m coming toward her and we crash into each other. It wasn’t like a bump, it was like we collided. And Karl [Lagerfeld] just looks and goes, “Well don’t kill each other.’’ It was one of my cooler moments. He really was funny and really nice.

Q. Has your opinion of fashion as an industry changed at all since you’ve been professionally modeling?

A. There’s a stigma that comes across to all of this, where it’s just that you show up and you look pretty and they take a picture and you get paid thousands of dollars. And that’s what it is. But that’s not what it is at all. I’ve met so many girls who have worked years and years to get to a position I’m lucky enough to be in now. And I’ve worked hard, too. It’s hours and hours of being professional and working overtime, but you end up having an unconventional job where you travel and get to see all these amazing things.

Rachel Raczka can be reached at rachel.raczka@globe.com.