Honey, as a volunteer, I work with young trans women. At a shelter. All of them leaving home because they told their parents without a definite plan as to how, where and what they would do if cast aside.
Lots of young ladies there and not one of them is okay or doing well.
So, think really hard about your future because your parents have no obligation to help you, accept you, support you or even talk to you. They may or they may not. Its unpredictable.
I know one thing for certain. People who prosper in life, in anything they do, they always are thoughtful and careful and mindful of consequences. Not impulsive, those people rarely do well at all.
I could list endlessly the disadvantages of being old. But the one single advantage is experience. You need a fool proof plan, where you will live, how you will earn a living, what you want your life to look like. Set your eye on those goals and work hard knowing unexpected things can happen. Its the best chance for success and not ending up a statistic.
Im sorry if this seems harsh. But in real life actions have consequences. Please take care for yourself always. No one is going to do it for you.