Student or Learner
If you see any problems in the following sentence, can I have your comments?
Not only I but also other students are concered if they will be able to adjust themselves to( or in??) a new place and make( or to make??) foreign friends.
Not only I but also other students are concerned whether we will be able to adjust ourselves to a new place and make friends in a foreign country.
That's keeping your original sentence as much as possible while correcting errors. You seem to be using it as an exercise in 'not only...but also'
It is not quite how a native speaker would phrase it.
Perhaps other posters could suggest possibly re-phrasings.