Hi okay first post... Umm yeah. So I recently told my gf bout what I am and she's cool with it and she's even going to let me wear her clothes and go shopping for my own and get me some for X-mas

but I have no idea what size I would be (in US sizes) I'm a 38/30 jeans, 12 shoe, X-large T-shirt and 38 underware. Can someone please help me I'm way new to having to get my own clothes

and i'm really freaking out over everything. Cause I have to hide this from my dad or else I'm gonna be dissowned or dead. Sop if someone could pretty please help me that would be so amazing.
-Love Jenny