I answered on the original post because I don't think that answer belonged here in the Cook Islands forum.
Never the less.
In order to become at home there are ingredients to make a successful recipe.
1. Acclimate to your new country, it's people, culture, social rules and language. If you are not willing to do that. Dont even leave, stay home.
2. Remember and remind yourself what were the things in your new country that attracted you to choose that place.
3. Remember and remind yourself what were the things in your old country that made you leave it.
4. The friendliness and openness of the people of the country, region, city you have chosen will of course play a big part.