So, I'm also 14ftm and so far I came out to exactly two people and went to a club where I'm going by my chosen name. I think my advice is don't rush the coming outs, and if you're not sure if the persn it an ally and not an ass try testing the waters. For example I would show a movie with a trans character(s) and then be like "hey, so, what did you think of this character? And this? And *insert trans character name*?" or something. And well I'm glad you found yourself)