The actress andSELFcontributing editor started The Honest Company, which produces non-toxic family and home products, in 2011.

My Mantra"At every point in your career, you have to have hustle.

Each milestone presents new challenges."

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Justin Coit

What I’ve Learned"I have mixed feelings about [going into business with friends].

I’ve hired some friends and family.

How I Stay Balanced"One day’s so different from the next.

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Courtesy of Under Armour

If I get in four workouts a week, I’m like, ‘I did it!'"

My Mantra"Stay true to who you are and what you believe in.

How I Get It Done"I have never found success by working in a silo.

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Courtesy of Liz Gateley

I wholeheartedly stand behind the decisions my team makes every step of the way."

My Advice"Try not to let yourself live with regrets.

She left a career in law to pursue her passion: entertainment.

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Sahar Wabeh

What I Learned"Don’t be afraid to take a step back to take a huge step forward.

My Advice"Bring your boss solutions, not problems.

I instill this in all the people under me that I work with.

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Keith Morrison

And be nice to assistants because they control everything.

The assistant today is going to be the executive tomorrow."

It’s so relieving to say, ‘Forget it!

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Courtesy of Christina Sass

I’ve been around this merry-go-round enough times to know I’m going to be fine.

The world will not end.'"

How I Get Inspired"Make your friends into your market testers for new ideas.

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Getty Images

What I Learned"You’re more prepared than you think.

How I Get Perspective"It’s really important to have a support system.

Not just for advice, but to be open with and share what you’re going through.

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Courtesy of Sophia Amoruso

It gives you more confidence and helps you realize you are doing the right thing."

The two former producers for NBC News partnered up to launch theSkimm, an email-based news delivery service.

Our Advice"People say, ‘Be open to everything.’

We follow a different trend: Say noa lot!"

How We Made It Happen"Don’t take no for an answer.

But we got turned down over and over again.

That’s where you learn how to be a professional," says Weisberg.

That’s not something it’s possible for you to wing."

Cofounder of Andela, an African-based employment training program that helps companies seeking tech experts find skilled developers.

My Mantra"Timing is never perfect; be ready to act!

What Sets Us Apart"We outcompete through diversity.

And it’s part of the value proposition that we offer to our clients.

Usually you have a team of largely male, white developers who come from a similar background.

But our people are experts in emerging markets and they’re going to approach problems in different ways.

They’re going to consistently look to problem-solve and add value from a different perspective."

My Advice"Fiercely protect the culture of the company you want to build.

Culture is in the airit’s the unwritten rules.

Don’t underestimate that.

And I really connected with that.

It’s fine that you didn’t grow up reading comics; you know great stories.

She’s the author of#Girlbossand the new bookNasty Galaxy.

My Mantra"Don’t compare your hustle to someone else’s highlight reel.

It’s easy to look at other people and think that you’re not doing enough."

What I Look For In Employees"The ability to make order out of chaos.

And, for me, managing up.

That’s really an art."

My Advice"Probably the biggest mistake female entrepreneurs make is thinking they’re different from male entrepreneurs.

And if they don’t, then you prove that you know what you’re talking about.

Success is the greatest negotiating power."

*This article originally appeared in the October 2016 issue of SELF.