Hey there, so sorry for the lack of family support. Life gets better, just hang in there.
One thing I want to get out there for you to think about very very seriously is this: You sound quite young. If this is right, do some serious thinking and try to get into gender therapy asap. Why? Because almost a universal truth around these boards is we ALL share the same regret: Not taking action sooner. The younger you are, the more passable you might be with longer term hormone therapy (were you before puberty with understanding parents, as a few very lucky girls are, they never have to go thru male changes that are later very expensive and painful to eradicate....). So if you are sure, get on hormones WITH the help of a doctor. Every year you wait will be a year you regret waiting; ask any of us.
Be safe, be well, and good luck!