Thanks for your replies! There's a fb group that's organizing group MMI practice sessions here: https://www.facebook.com/groups/263776044319283/
I've not been to one myself yet but I've heard that it's helpful. It seems like the next practice session will be this Sat March 14th, 10:30-1:30, Toronto General Hospital Food Court, 585 University Avenue, Toronto. That's the earliest I'm available this week, so perhaps we can meet then and figure out times to practice for the following weeks.