Hi Huan,
I'm in much the same predicament as Karen, albeit on the warmer northern side of Tassie, near Sydney. (Sorry, private joke)
Perhaps presenting your GID (Gender Identity Disorder) to your parents in a medical context could help them understand your plight a little better than how you described it in a body sense.
GID is a well documented medical condition, of which you had absolutely no choice. Your parents are not to blame,it's one of those birth defects created through a variety of causes somehow linked to hormone, genetics, environmental conditions and a plethora of other medical factors.
Perhaps if your local GP could explain it to them, coming from a professional may carry a bit more weight your way.
Does the Uni print a student paper you can advertise in?
Hope it goes well for you. Keep in touch and let us know how you are coping.
Be safe, well and happy.
Lotsa huggs
Catherine