It's not Trans Visibility Day anymore, I'm a little late to the party but I guess I can post.
I'm transmasc non-binary. I wouldn't say I realized it, but sort of molded into it over time, and I don't quite know when it started. Probably... 2012 or so, some switch flipped in my brain. My comic is in a bit of an odd spot, one of my characters used to be transfem non-binary but one day I learned about intersexuality after some of my readers were wonder about it. I did some research and found that what my character would deal with wouldn't be much different aside from really small changes, and it just felt right, so I went with it. Now they're intersex, they don't see themselves on the binary given how their sex characteristics are, but they're not trans either. I do have some trans side characters though, and overall my whole cast is queer in some way.
That all being said if you're not 17 or older, if you don't like dark dramas (Or slow burn hurt/comfort type of stories.), if you're sensitive to heavy topics or bigotry or profanity, I wouldn't recommend checking my comic out. It's, uh, quite a ride. Especially after I finish the current and next chapter. x'D