I haven't changed any habits or behaviours. I had only to learn English.
In my case, after living in Canada for 3 years I had to return to my old country.
It was difficult, very hard.
People in Chile are very different than here.
They don`t have the same customs, manners and lifestyle.
I had to get used to many things again.
It was really hard and I felt like a visitor. I only wished to come back to Canada soon.