There are a lot of people here saying they're both, for me it's a firm type two. Even in retrospect I can't find any signs, because I can barely remember anything about my childhood in more than the broadest strokes.
My first "sign" I can remember was someone pointing me to r/egg_irl, and I'm still not sure if that was because I showed proper signs or just because I didn't understand that guys can be bottoms too at that point. And for some reason, because of that, I'm still scared that I am somehow faking it to myself, because I saw an identity that partially matched and then adapted the rest, as I pretty much grew up in online transfem spaces and my dysphoria was never that extreme, almost always just a nagging at the back of my head. But it's been over eight years at this point, so you know, it's part of me either way at this point, and I doubt I could talk myself into something that lasts this long. Still sometimes a bit afraid of faking things though.