Hi @VictoriaOgle,
If your dashboard completely empty, or are you just missing certain information? A blank dashboard that appears to be loading forever usually indicates an outdated web browser or operating system. If you're missing specific courses, you'll want to reach out to someone at your school (probably in the eLearning / IT / Digital Education areas) so they can check out your account. In the global community we can answer general Canvas questions, but don't have access to your specific school Canvas or information from there, so this is a hard question for us to answer ourselves.
I hope this helps a bit!
-Chris