Enduring Power of Attorney
Having an Advance Care Plan and a Substitute Decision Maker / Power of Attorney for Personal Care means it is more likely that your wishes will be carried out in the future.
How Advance Care Planning works differs across provinces and territories. Speak Up Canada and Advanced Care Planning Canada have interactive workbooks for each province and territory which can guide you through some of the decisions regarding your values and wishes.
See their information at Advanced Care Planning Canada.