You work hard for your money. So you should be paid what you are worth! Also, you’re fabulous.
While obviously you should be paid what you are worth, you may or may not be currently paid what you should be (let’s also take a moment to remember that equal pay isn’t a “thing” yet). The first step toward making sure you are paid fair compensation is to actually be knowledgable about what average salaries are like for people in your profession with your level of education and experience. To find this out, you need to start looking up salary information.