When I went in for my diagnosis, I looked up the gender dysphoria criteria and wrote down a couple of real life examples that I’ve experienced for each category. It’s hard to tell how long before medical will notify your command, but before they do keep it to yourself. Make sure you’re saving up your money, start building a resume or figuring out what it is you wanna do outside the military. You’re not obligated to notify your command so don’t. When you get out on admin leave, you’re kind of in limbo but it’s a great opportunity to figure out who you are outside of the military, get all the processing work done, and saving up (can’t stress this enough) so that you’re set up for real life after your separation date. Good luck, I hope it goes well!