High school isn't your typical breeding ground for entrepreneurship. Strict timetables, generic lesson plans and constant assessments are, for many, more likely to inspire boredom than the next great business idea. But for Richard Lorenzen, who founded his business in the 10th grade, it was a different story. Only, his wasn't a typical schooling experience: Lorenzen was homeschooled and he said that's what pushed him to become the entrepreneur he is today. “Wherever you go to school, you’re always going to have to try for yourself," Lorenzen, founder of New York public relations firm Fifth Avenue Brands," told CNBC Make It. “But I can see now some of the places I’ve had advantages, and also the personal habits I’ve developed, by being homeschooled." It all started fairly mundanely in an overcrowded public school in Long Island, New York. Lorenzen's mom, a freelance writer, decided she could do a better job homeschooling her children, and, to a seventh-grade Lorenzen and his younger sister, it sounded like a great opportunity to slack off. "When a kid hears homeschool, they hear ‘woah, I don’t have to go to school anymore,’” recalled Lorenzen, now 26.

Richard Lorenzen, founder and CEO of New York City-based PR firm Fifth Avenue Brands Richard Lorenzen

But, the move actually had the reverse effect. Lorenzen was not a bad student by any means, but all of a sudden, without an experienced teacher to fall back on for help, he found he had to take on new responsibility for his studies. “It was probably a result of my Type A personality, but also the pressure that there was no one else to blame," he said. "I got into this momentum where I discovered I was really an independent worker." That boosted his work ethic, but it also led him to develop interests in topics beyond the syllabus: namely, business. A few years and a library of business books later, Lorenzen had adopted business studies as an elective and, by 15, he'd launched an internet marketing start-up, which he would run out of his bedroom in the afternoon after finishing his studies. In the 11 years since, Lorenzen has grown that side gig into a thriving multimillion-dollar business with clients including Expedia and the United Nations. He's gained business mentors and dabbled in a year of college education along the way, but he said much of that success comes down to four traits he picked up during his homeschooling days.

1. Start early

From the age of 15, Lorenzen started waking up at 4:30 a.m. every day so he could juggle his school work with his business. By starting early and “cutting out the fluff” of the classic school day, like lesson changes and long breaks, he would finish his assignments by midday and spend the afternoon focusing on his business. “Because I was dealing with customers during working hours, they had no idea I was a teenager in high school. I was able to create the perception that I was around 24/7,” he noted.

2. Build a routine

Early starts are just part of a wider daily routine Lorenzen developed during his homeschooling days and has practiced dutifully ever since — including on weekends and holidays. Each morning after waking up at 4:30 a.m., Lorenzen spends 30 minutes reading and 15 minutes setting out his goals before meditating for 15 minutes. He then exercises for 20 minutes and heads into the office by 7 a.m. In the evening, he reads and journals for another 45 minutes before hitting the hay by 10 p.m.

Richard Lorenzen, 15, with his younger sister at their home in North Babylon on the south shore of Long Island, New York Richard Lorenzen

3. Dress smart

When Lorenzen started his business at 15, he decided he needed to start dressing for the status he hoped to achieve. So, every day he would don a formal suit — despite working in his bedroom, a few feet from his bed. "I wanted to be the CEO of my own company," said Lorenzen, "So I decided that everyday that when I woke at 4:30 a.m., I would put on a suit and tie to do my work."

4. Read... a lot