Hi  @ssweeney818 ‌

You manage what courses display on your Dashboard, by managing your Courses list. Courses that display in your drop-down courses list, also display on your dashboard. When you remove a course from the drop-down, Canvas no longer displays it on the Dashboard.

Learn how at https://community.canvaslms.com/docs/DOC-10570-4212710327  While this How-To is for students, the process works the same for all users.

I hope this helps.