You likely qualify if: People in Ontario; Faced discrimination or harassment; Covered by the Human Rights Code.
You can ask for help any time, but the deadline to file with the Human Rights Tribunal of Ontario is generally one year from the last discriminatory event.
Everything above is from their own websites, with the date we read each one. Tap "It worked" or "No answer" after you try a way in: that is how this list stays true, and it is the one thing no search engine and no AI can know on its own.