Hi there, @BiancaDeane ...
Sorry to read that you are having troubles logging in to your course(s) at your school. If you are having difficulties with your username/password, I would recommend that you reach out to your school's Online Learning / eLearning / Distance Learning department or your school's IT Help Desk staff. They should be able to help you with that. Also, check these Guides out:
If you are able to log in but are having difficulties seeing your Canvas Dashboard, these are things that have been recommended:
Hopefully these things will help in some way. Please let Community members know if we can do anything else to help...thanks!