When I return to Canada to study, will I need to self-isolate before I can come to campus?

Based on current Government of Canada policies, yes. When you arrive in Canada by air or land, your health will be assessed before you leave the port of entry. You must have a plan to quarantine for 14 days when you arrive in Canada. This is mandatory, even if you have no symptoms.  

You should be well prepared to provide a detailed isolation plan to border officials upon entry to Canada. The government has provided details on how to quarantine (self-isolate) at home.