Depends who's asking
I am an transformational author, youth speaker and coach.
I work out and meditate everyday, eat healthily and honor my body. I am most creative and have the best energy when I'm in a rhythm with my sleep/work/play discipline. I work from home, so I must prioritize and stay focused. I write daily for my blog (The Year of Magical Dreaming) and submit articles to many online publications. I spend a lot of time "building a platform," aka developing an audience. I also use social media as a marketing tool for my business. I study successful people nonstop.
Find a mentor. Writing is the least common creative discipline to offer mentorships, but I think it is becoming more popular. There is so much business in writing now that it is worth it to meet with someone and make sure you are ready to be a marketer, publisher, PR person.
Here's the first step for high school students
Read, read, read. Study the best in your genre. Write as much as you can. No judgement. Just write.
"You can't just go around being a dreamer your whole life."