The best thing you can do if you're uncertain, is to do your own research. It's more valuable I think than asking other people what their opinion is based off their cisgender perceptions (usually). There's a lot of good books out there on this topic and the one I'd most recommend to you would be "Manning Up: Transsexual Men on Finding Brotherhood, Family & Themselves" - it's a collection of experiences of transmen, from first discovering and learning that they might be trans, to how their lives are as a result of the transformation. The stories are all really short so if you find one you like or relate to, then maybe you can google that person on the internet and learn more about them or maybe even arrange a chat. Most transgender people want to help other trans-questioning and are willing to reach out and answer questions and in some cases, even mentor. There are also a lot of youtube videos of MTF transitions if you just want to see what the process involves. But, since you are young and still technically maturing and you'll go through a lot of changes hormonally over the next few years, it might be best to wait until you've had a few life experiences under your belt (college, job, etc) that way you can see who you actually are in those unfamiliar settings, if that makes sense? I say this because I knew a girl once who in her teens thought she was a lesbian, a rather butch one, and she did the binding and cut her hair short and stuff, but by the time she was in her 20's she met a man that she fell in love with and they've been together 3 years and she completely embraces her feminity and loves doing her makeup and all the stuff that cisgender girls love. So people change over time and when your a teenager or young adult, you're undergoing tremendous change and adjustment so I would suggest waiting because once you start to transition and have surgeries, then you'll never really be the same again, even if you want to reverse the process. I'd suggest you just keep doing what you're doing now and you may consider yourself transgender if you identify more with being male than female and if you prefer male pronouns and are uncomfortable in your female body, etc... that would fit under the larger umbrella of transgenderism. Some people only define you as trans if you've had surgery. but basically, it's not for other people to decide who or what you are. It's up to you to claim your own identity in this world - but just know that your identity may change throughout life as you go through different situations.