Moving and friendships
When you move, it often means that your old friendships diminish and you gain new ones.
That doesn't have to be a problem, except for the one fact that you've gotten a bit older again - because then it's very different and perhaps a lot more difficult to make really new friends.
In another place (and especially in another country, with a different language) friendships are already different, even in Canada.
The loss of old friends and the resistance you encounter in finding new friends are a stumbling block for some.

How are friendships in Canada different from elsewhere?
Can you say something sensible about that?
For some, making new friends is easy, while for others, it's a rare find. There are superficial friendships, deep friendships, and everything in between, with all the variations that come with it.
You'll quickly notice that friendships in Canada tend to be quite superficial. Most people seem to enjoy it that way. Drinks occasionally, occasional socializing—but deep conversations and sharing feelings and thoughts are difficult, if not impossible.
It's easy to make things unnecessarily difficult, so to speak, and few people are interested in that. It's better to keep things nice and easy. Just be cheerful and don't complain.
Canadians generally have very few interests and passions. They prefer to ignore other cultures, countries, and languages. If you harp on about things from elsewhere, you're quickly out of the picture.
However, if you're good at talking about money and the weather, you've already come a long way. And for heaven's sake, try to master that language, because many Canadians quickly lose focus when you're fumbling for words.
A Canadian likes to express their opinion on everything and anything. This often involves a form of black-and-white thinking. Adapting to that can be quite a challenge.
Lonely and alone
Unless you find yourself in a group of like-minded people, you'll quickly become the odd one out. Loneliness can then be a real threat.
Conviviality is different everywhere, and that's also true in Canada. Adapting to that can be difficult.
A move can be particularly disruptive for people leaving behind a large group of friends and acquaintances. If finding new friends isn't really working, you might be more inclined to consider moving back.