If you want to find scholarly articles, the best thing to use is an article database. To learn more, see this overview of an effective research process.
If you want to get your feet wet, you can wade right in with a general search of several EBSCO databases with scholarly articles.
A lot of students like using these particular databases to find scholarly articles. Try one, or find some other particular database by name.
The databases are put together around academic subjects like psychology, education, business, etc. For more serious research in a subject, like for your major or program area, find the specialized databases by subject.