Hi Nate ,
A big Aussie welcome to Susan's family. It's good of you to drop in and say "Hi". Hope you like it here, and you stay for a while.
There is a mountain of information, resources and friendship waiting for you here, you just need to jump in and start talking. As you mentioned, though, your are going to go to Uni. They may have a support group there of have, or know of a gender therapist that may be able to shed some light on your thoughts and feelings.
Looking forward to hearing more of your story in time to come, but in the meantime, be safe, well and happy.
Lotsa huggs
Catherine