The Law Society of Ontario has a number of great resources which can be found via the link below.
https://lso.ca/lawyers/practice-supports-and-resources
To access free counseling for any Ontario lawyer follow the link below.
https://lso.ca/lawyers/practice-supports-and-resources/member-assistance-program-(1)
All provincial law associations offer access to free counseling. Contact your local law associations for details if you are not a lawyer or articling student in Ontario.