Hi @JulianneWoody ...
Often times, instructors will hide the "Assignments" course navigation menu on the left-hand side of your screen. Then, instructors will direct their students to the "Modules" course navigation button on the left-hand side of your course. Instructors build the layout of the course using the "Modules" page. For example, instructors may have several modules organized by week, lesson, learning plan, etc. So, I would encourage you to check your course to see if you have a "Modules" page available to you. Hopefully, your assignments will be listed on that page. If not, then you should contact your instructor to inquire about your assignments. You can contact your instructor by following the steps in this Guide: How do I get help with Canvas as a student?.
I hope this will be of help to you. Good luck!