Comfort or who i really am?

Hello! I’ve been going through a lot in my head, I don’t know if I’m actually she/her, she/they or just straight up they/them, i never learned about those topics as i was growing up so i never had a time to think about it at all, i grew up in a very conservative country/ environment, im 21 now and i live in the United States where im learning all kinds of things but the thought of change genuinely scares me, my friend accidentally called me they on accident and it actually made me happy but im so in my own comfort zone that i don’t know