Are there any sort of support groups in Toronto, particularly for people dealing with mental illness?

I was going to a therapist, but I'm not sure if I'll see them again as the funding for it comes from UofT's accessibility services and I don't want to deal with them anymore. It might be dumb, but I was watching Elementary and how Sherlock finds help in meetings for his addiction.

Not saying I'm going to replace one with the other. Just that I want to try meetings like this.