Anxiety Canada

Anxiety Canada, a non-profit organization, was created to raise awareness about anxiety, and to support access to proven resources and treatment. They are a leader in developing free online, self-help, and evidence-based tools to help manage anxiety. 

ENG: https://www.anxietycanada.com/learn-about-anxiety/anxiety-in-youth/  

FR: https://www.anxietycanada.com/fr/learn-about-anxiety/anxiety-in-youth/