You can’t expect anyone, especially the VO, to take your word for it, that somehow you’re just gonna do well in Canada, where the language of instruction is different. a statement that youre a good student isn’t very strong too, because anyone can obtain such a statement and there are lots of other good students out there.
the best way is to prove your motivation and ability by first doing well in a school in your country. then you may have a case to fight. or else, it’s all just empty words and you’ll just get rejected again!