In 2010, 24-year-old Grant Sabatier had just moved back in with his parents after bouncing from job to job and then getting laid off in the midst of the recession. With less than $5 to his name and only three months to find his own place, Sabatier knew he needed to get his finances back on track. His wake-up call came on the morning of August 24th when he wanted a Chipotle burrito for lunch. "I only had $2.26 in my bank account — not even enough to buy a side of guacamole," says the Millennial Money founder and author of "Financial Freedom: A Proven Path to All the Money You Will Ever Need." Sabatier set a goal for himself on the spot: Earn $1 million and retire as early as possible. He began doing anything he could to make money, from flipping domain names to buying and selling Volkswagen campers. "I had 13 different income streams at one point," he says. Sabatier boosted his income to more than $300,000 per year. He also managed to save around 80 percent of what he brought in, which he invested in the market. Only five years, three months and six days later, Sabatier reached his goal with more than $1.2 million saved. That was in 2015.

The important thing here is to realize that saving is not a sacrifice. It's an opportunity. Grant Sabatier author of 'Financial Freedom: A Proven Path to All the Money You Will Ever Need'

Although his story sounds extreme, Sabatier, now 34, believes nearly anyone who earns more than a certain amount can follow in his footsteps. "I think a vast majority of Americans can retire in 10 years or less if they're making at least $70,000 per year," he says. To make that happen, you have to be willing and able to consistently save 50 to 70 percent of your income, he says, and that may require a major overhaul of your lifestyle. But you don't have to make yourself miserable. It all comes down to your attitude going into the situation, he says: "The important thing here is to realize that saving is not a sacrifice. It's an opportunity." "You're going to have to live a little bit differently than most people," he adds. "You might be thinking, 'How can I live on $30,000 or $35,000 per year?' But you can live actually pretty well on $30,000 or $35,000 per year."

Sabatier emphasizes that making short term sacrifices now allow you the freedom of financial independence later. "You're probably thinking, 'Oh, I'd have to get a really crappy apartment or drive a really crappy car.' And the answer is: You might actually have to do that for a little while," he says.

Self-made millionaire Grant Sabatier

"But we're not talking about doing that forever. We're talking about doing that just for a couple of years in order to bank and save and invest the difference." If you're interested in retiring in 10 years, Sabatier offers three tips to make it happen.

1. Cut your housing expenses

What's your biggest monthly expense? For many people, it's your rent or mortgage. Sabatier recommends trying to decrease that number by as much as you can because it's a simple way to make a big impact on your savings. "Live in the least expensive apartment that you can, get roommates, house hack, buy a two-bedroom apartment and rent out the other room to keep your housing expenses as low as possible," he says. "If you can cut your housing expense from $2,000 down to $600 or $700, all of the sudden, you've 10 or 15 years off the time that it will take you to retire."

2. Start a side hustle

You can only cut your expenses so much. But the amount you're able to earn is limitless. "Go out and just try to make a little extra money," Sabatier says. "You don't have to go crazy, you don't have to go out and make an extra $10,000 or more per month. But every $1,000 you make and invest instead, that's going to cut literal months off the time that it will take you to retire." He notes that it's also important to invest your extra income. By putting your cash to work, those earnings are able to grow, rather than sit in a regular savings account, where it can actually lose value in the long term.

3. Stick with it