I started out at 355 and I'm only 5'1 so I feel you on that one!!! ALSO from Ottawa and am always kicking around if ever you need someone to talk to or some motivation etc
Have you asked your doctor about getting referred to the Ottawa Weight Management clinic? They have a wonderful program for people losing weight (it's what I'm currently doing.. So far after 5 weeks on program I've lost 29 lbs!!!)
Keep in mind, I'm not saying that's the ONLY way to lose weight.. I just know for me it's been a LIFE SAVER and I can't recommend it enough to anyone who is looking for some help. The medical staff are beyond caring, the whole clinic is set up to make overweight people feel at home and comfortable, and they even will help you find dentists/eye doctors yadda yadda that are "fat friendly" if you're looking for someone. They have this huge roll-a-dex of people they've personally vetted as being caring and understanding towards our needs.
Good luck with everything. You GOT THIS!!!!
Try not to focus on the number.. it's all the little things that count. I stopped needing a cane, and it's the best feeling in the WORLD!