THE MODELING BUISSNESS....ADVICE!!!!!!?

So I am one of theose really tall girls who has always been the very tallest in her class....i live in suberbs around toronto..i have blond hair.. i am also not the thinest person ever but i am not overweight. I have always thought about being a model and now that im older i want to know more about the industry and if i eeven would have a shot at becoming one. also i am wondering what different agencies there are. I am willing to move to toronto! sorry for the bad grammer but i just got a new computer which im not used to! any help would work.. it might be a silly idea but i was just wondering!