This Community forum does not have the ability to help you with that.
First, check your Junk/Spam folder to see if it might have landed there. And consider trying again, just in case you typed the email address wrong.
Second, I would suggest reaching out to your school's tech support for assistance. It is possible that the password is set by them initially, and they might have the ability to help you get in.
Third, reach out to Canvas Technical Support regarding the email. https://www.instructure.com/contact-us#:~:text=Contact%20Us,-We%20are%20here&text=For%20general%20in....
