I'm in a similar boat as you. I'm MTF and I tried being a boy when I was younger and denied I was transgender to myself for years, even after I read up online, asked questions on yahoo answers, etc, I was so terrified that I tried harder to become a boy. It failed.
I look androgynous (at least I think so), I am slim, have a high pitch voice and I have a baby face, so I'm lucky (or unlucky) there.
Anyway, you should do what I'm going to do. I'm going on holidays to my friends house in another state (She is 60 years old and I am 21, but we are best friends!).
Because I know absolutely know one in that area she agreed to help me put on makeup and help me dress up. It'll be the first time I will ever go out dressed as a girl. Because the last few times I tried, I had a panic attack and never even left my room.
I won't sugar coat this, but you will probably lose many friends and depending on the kind of family you have, some to most. But if you live in a country like Australia than you should be safe. I told my boss my situation and she fully supports the LGBT community and even went as far as to let me use the girls toilets if I wanted to. (I declined unless I looked like a girl first, and she was fine with that).
I'm not saying your boss will agree with it, but he/she can't discriminate against you, and certainly they cannot fire you for it.
I've been taking baby steps and I suggest you do the same, you don't even have to tell anyone right now. I pretend I'm a "pretty boy" and you could pretend to be a "Tom boy" for the time being.
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