Step One: Know your topic.
Find the focus of your paper. What's your essential question and what's your thesis? Consider your paper's Cornerstones and how that can help you find information. Your thesis is there to help guide your paper; use that sentence for all your work. If it doesn't fit in your thesis, don't worry about it and move on!
Step Two: Be prepared and organized.
You're going to have a ton of stuff to look at: books, websites, databases, videos. So much! So start knowing that you have to be organized. Something like Noodletools will provide you with a space to keep track of all your URLs, notes, and more. There are other ways, of course. Find the organization that works for you.
Remember to keep track of all the sources you look at. A serious paper will contain not only a Works Cited (sources that are used directly in your paper) but also a Works Consulted (all the sources you looked at, whether you used them in your paper or not). So keep track of them as you go!
Step Three: Think about the resources that you need.
Websites, databases, books, periodicals, academic journals, videos, interviews--all of these and more can help you in your research. But which will be the most helpful?
If you don't know much about your topic, start broad, like an encyclopedia entry. Sure, use Wikipedia. It's not a great resource, but it's a good place to start. Plus you can always use the bibliography at the bottom of the entry. In fact, most good resources will provide links to where they get their information--use these links to your advantage!
From the basic, move up. Eventually, you may find yourself at an academic journal; these are pretty intense at times, but they're direct studies and research. Most periodicals use these, distil and simplify them. The academic journal is a great resource from the experts. EBSCO Discovery is a great place to find a good academic journal. And remember, like a book, you don't need to read the whole thing. Start with the introduction, jump to the conclusion, and see if the rest is worth reading.