Thanks for the replies guys-
kdbrrw: Yeah, I know what you're saying about hesitating to talk once getting gendered correctly. It's ironic because the people who call me the right name and pronouns are the last people who I want to think that I'm stand-offish and rude, but it's sometimes as though I can't help seeming that way because I'm thrilled but at the same time afraid of messing up. And yes, correct pronouns are mandatory. I die a little inside when anyone calls me she... I'd stand up for any person, trans or not, but for any trans person, I'd do anything to help them out. However, I'm usually confused about what to call nonbinary people- until they tell me what they prefer, I'd just use "they them theirs", etc. with the best intentions.
KamTheMan: Yeah, IDs suck. When me and my partner were buying wedding/engagement rings (again at a pawnshop, those places have some sweet deals, haha) the employee thought we were a gay couple until I got this insurance thing where I had to show my ID. I shouldn't have gotten the insurance... But anyway. He looked shocked, but still treated me like a guy. So I guess that's maybe a sign that people are more accepting than I thought they'd be.
JourneyFromConfusion: Yep, I'm still in high school unfortunately (I feel about 20 years older than most people there) and I don't really know how to start being officially "out". I think I'll just take each situation as it comes, and ask teachers/people in general to call me Rom. Maybe they'll think it's a nickname, but I live in a conservative but safe city so if they pester me too much about it I'll just flat out tell them. I'm also planning to print out a picture of a trans pride flag and put it on the front of my binder (the one for papers, not the one for vile chest abominations). I'm nervous, but I'm not afraid anymore. And yeah, I'm wondering if going on T really will make me feel more secure. It's already freeing to mentally be able to use male pronouns when thinking about myself (I'm weirdly introspective and mostly live inside my head, haha).
So yeah, I'm glad to have some input on this, and it's always good to remember that we're all in this together.