being anxious and nervous are basically synonyms of being scared. Those are expressions of fright. No shame in it....we were all there the first time.
Never got the plane anxiety stuff. The human condition is a trip...people are scared of planes in which their safety is almost guaranteed, yet jump into a vehicle everyday where they rocket past other cars at inhuman speeds, and are feet, sometimes inches, away from a potential crash. I remember being excited as sht for my first plane trip as a child.