You are not the first person to face this situation. There are a lot of families in Ottawa and in Canada in general who don't accept their children's worldview. I too am a vegan and my parents didn't want to accept me until the last minute. I found a website inspirationalsouls where I got a lot of helpful resources for vegans. Movies, books, articles and psychological help. It was here that I found a way to prove to my parents that veganism is okay. Read it too. It will help you.