I have two thoughts.
One is that being normal may not completely be in the cards since you aren't going to relate to your co-workers foundational experiences in life. Catholic school, holidays, playing sports, after school clubs, church youth groups, girlfriends, boyfriends, trying pot, going to prom, etc.
My second thought is that a person that grew up in another country would prob not have those experiences either but may still feel normal.
I guess I would need you to define what normal is or what abnormal is in your situation.