If you don't know who Amy Schumer is, then maybe you know her work. The funny gal has a sketch comedy series on Comedy Central called Inside Amy Schumer, which has been nominated for five Primetime Emmy Awards. She also wrote and co-starred in Trainwreck, a tell-it-like-it-is comedy about a woman who's afraid of commitment.

But clearly, Schumer is also quite the business woman. In 2013, pre-Trainwreck fame, she was contracted to write a memoir for HarperCollins, receiving a whopping $1 million in advance. According to The New York Times, however, Schumer canceled the contract last year and returned the check along with interest because she didn't have time to concentrate on the book.

Now, Schumer has landed an even better deal: an $8 million contract with the Simon & Schuster imprint Gallery Books.

"I had a whole deal, but I decided to wait," Schumer explained in an article on GQ, I thought I would make more money if I waited."

And make more money, she did. Schumer obviously knows her worth and we should, too. Don't sell yourself short. If you think you're worth more than the salary you're getting, don't be afraid to ask for a raise. The worst that can happen is for you to get rejected. Don't be afraid to seek opportunities elsewhere either. You're the only one who can make it happen. If you don't stick up for you, who else is going to?

Need to step up your game at work? Let these articles help you:

How to Handle Difficult Colleagues in the Office
Don't let them make your life hell.

Why Being Nice At Work Can Be a Disadvantage
Find out how this can backfire on you.

5 Things to Do for Your Career in Your 20s That Will Pay Off in Your 30s
Like establishing yourself in your industry.

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