Teg,
You'll do fine. I've already told you that you are beautiful, well you're pretty darn cute too. Here are the obvious tells.
You'll need to do some eyebrow shaping,
If you're going to wear a tee shirt, ditch the arm hair.
Buy some breast forms, but don't get carried away and go for super busty. We aren't trying to attract attention, at least not at first.
OK so the first time you go out if you have a cis-girlfriend you can go with you will have an absolute blast. Best not to go alone, it is just too scary. You'll eventually need to work on your voice, you sound like an English teacher. But for now be the amazing girl you have inside.
Love You Lots,
Julie