Hey Bark,
I had to grin a little reading your intro -- I went through the exact same "phases". Lurking on this forum thinking, "I don't belong here, but it's cool", reading on the men's support forum, choosing gender neutral names, identifying as "not a girl" ... Took me a few months to embrace my ftm-ness (this is where I ended up, after trying out the non-binary "label" for a while)

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Welcome here!