1. How do I keep it a secret? That’s the hard part. Easiest way? Find a good hiding spot for every thing, especially if you don’t live alone.
2. How do I make my body more feminine. Can’t help you there, sorry.
3. And how do I choose a name for my female self? As for the name? Run a few through to see if they resonate. Find something you like find a name from there. Or feminize your name. There’s no real one way to do it. I’ll use mine as an example, and mine has 5 parts:
Anna- name of an old crush, Leigh- feminized version of my middle name (thus Annaleigh, also a character from one of my favorite movies). Claire is an old friend and just fits, plus it’s cute. Rose is my favorite flower. My last name was the tricky part, but is the name of one of the characters from my book I’m writing.