You asked about Canada, now what?
Continue to google around and check out the schools websites, get excited all what you want.
And when you know which country you would consider, come back here and peoples may still have the willing to answer you.
But don't change your plans all the other post.
Beside look up a bit there is a stick about US visa in this wannabe thread, go read it and do your own homework first instead of thinking out loud here.
Sometimes the use of "thanks", or "merci" or "XieXie (谢谢)", "gracias", "спасибо".... Wouldn't hurt...
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***Reminder to any wannabe: the british Richard Branson (virgin), the german army, the french prime minister, the american army gave some warnings: within 5 years the energy cost, especially oil, will most likely reach an unsustainable level. Think twice...