Hi Makenzie,
You don't say if your family would be supportive or not. If they might be, talk to them. I was surprised at my parents support this week and I'm 38. If you can have that support...take it. Ask to see a psychologist (WPATH accredited or with experience of transgender issues) to explore this side of you.
You're young enough to make a perfect transition and with support you could get on blockers to delay puberty and avoid beard growth etc. But do it safely wit professional help... not online.
Beyond that you could: grow out your hair. Pierce your ears. Buy clothes that work for boys or girls..skinny jeans, tops. Accesorize with unisex jewellery. Pluck your brows, get some eyeliner. Paint your nails black or another emo/goth/cosplay color.
Fewer people notice or comment than you think and if your folks know, they'll be on your side. And if it proves to be not what you want, well you can tell people it was your emo/goth phase.
The biggest mistake i made was not starting young. If you think this is what you want, take the opportunity. As you get older bigger obstacles appear: job, marriage, kids, money and if you're like me you keep putting it off until it starts to ruin you. The obstacles might seem huge to you now but believe me they get bigger, so now is a good time.
Good luck.
Nat xx