How do I actually “get married?”

If you are getting married in Ontario, you can have a civil ceremony performed by a judge or a justice of the peace or a religious ceremony by clergy including Humanist Officiants.

During the ceremony, when the legal requirements are met including the signing of the Marriage Licence the marriage is then “solemnized” and you are legally married.

To confirm my registration see the list of religious officials and their locations, registered with the Office of the Registrar General to legally perform wedding ceremonies in Ontario.