A particular loneliness
Emigration is not only a new country but the loss of a familiar environment, language, roles, and people who knew you 'before.' The loneliness here is particular: you can be among people and still feel foreign.
It's a normal response to a big transition, not your fault.
Why it's so hard
The small daily contacts that used to hold you disappear. A lot of energy goes into adapting, leaving little for closeness.
On top of that comes the feeling of being at home nowhere — neither there nor here.
What helps
Support in your own language matters — from someone who understands the context without long explanations.
A space to speak about it honestly often restores footing before the new life on the outside settles.