Among other things I teach at a Uni, I also transitioned 'on the job' and went from an apparent 'male' lecturer to a female one during a lecture series. Good way to get the students attention

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I would go as you, the real you. Uni as others have said is a very accepting place and many people are getting to terms with their sexuality and their feeling of who and what they are. It is part og the 'growing up' that young people go through at that age and in what is usually a liberal environment.
Uni's also (at least in Australia) have very strict rules for gender discrimination and for tolerance of minorities in any aspect be it race, colour, religion or sexuality. So if you do have a problem you can expect good support from both the teaching staff and from the various agencies at the Uni.
And by the time you have your degree you will be comfortable in your life and ready to go forward as you.
Hugs
Cindy