Although many questions can be annoying, if you are patient enough, you can see it as an oppertunity for explaining Islam to others. Theres a hadeeth that says bringing one to Islam is better than the world and everything in it. Even if it doesnt happen, chances are you might spark the interest that might lead someone to Islam, even if its years later. Your very presense among non Muslims will have that effect.
Secondly, despite the fact that it can be eventually felt as a part of your identity, pride, and so on.. and the fact that it will only be a matter of time before everyone around you is used to it (therefore nothing to be stressed about really) theres always people out there that will simply feel jealous. Some girls think "oh so you think you're better than us, and that we're .. (well.. you know.)" Others might simply dislike the fact that you're Muslim.
If thats the worst case scenario its not really something to worry about too much. Especially that on the other hand, you wouldnt believe how many people would view you with so much respect. Even when they do actually show it. So remember the bright side too.
Third, remember, a believer does not feel any pain, even a thorn in his/her foot, except that Allah will forgive sins, so remember, that nothing goes without you getting reward in return. And like I said, remind yourself of the bright side as well. And besides, although I dont know your town, but I think in Canada many are used to hijab so its not like you're in a small town in Alabama.
I think insha'Allah its just a matter of time and everyone will get used to it and theres nothing to be stressed about, sister. Usually the stress is about the unknown, not knowing what to expect, while in reality if something actually happened it wouldnt cause any stress. The stress probably is more about the new experience and not knowing what to expect, more than the hijab itself. Anyway, seeing how people react, both positivly and possibly negativly, will really be a nice experience to think about and reflect on.
So put your trust in Allah, sister, and remember that theres not really much to worry about, and even if there were, rewards from Allah will be equal to or more than anything that would bother you. Insha'Allah everything will be fine.
May Allah make everything easy for you and bring tranquility and comfort to your heart.
Although different, but food for thought....the Sheikh of Islam Ibn Taymiyah once said (at a time of war with many enemies around) "What can my enemies do to me? killing me is martyrdom, jailing me is a retreat (to reflect, read etc), and expelling me is tourism. My heaven is in my heart, no one has authority over my heard except for my Lord."
So insha'Allah the issue isnt even close to all that, and finally, you'll get to find out who your real friends are, and who will support you and who wont and who will be neutral. That alone, is a benefit many wish they had.
Granted im a guy so I cant claim to know what its like, but I hope that you find these words helpful.