Don't get hung up on labels. Just do what you want, try out new things and see if you like them or not. I found out I am cis purely through trial and error- being perceived as a woman feels incorrect to me. I hate wearing women's clothes, whoever designed them is a bastard. I like having a beard. I don't like the way makeup feels, and even my man boobs are too much for me. You cannot know yourself without putting yourself in new contexts and reflecting on how you relate to those contexts