Jenny, I have to apologize for blowing you off in my first response to your cry for help. Frankly, I was in my seventh day off PM and was acting very much in my old male mode. I'm back on PM now and feeling less agitated and more like I prefer to be.
You have received a number of constructive suggestions for dealing with your problem; hopefully you have found something among those ideas that is worth trying.
The problem I have in making a suggest is the lack of understand of your situation beyond what you've written. I have no familiarity with your mother's attitudes other than your saying she's 'homophobic'. Even if you are gay (you don't say), I've seen people's attitudes toward gays flip 180 degrees when its revealed that one of their own children is gay. Being transgender does not necessarily mean your attracted to guys.
I don't see transgenderism being an all or nothing situation the way homosexuality is. I think one is best off easing into a crossgender role. In that way, your mom will see changes occurring over a long period and have time to adapt to your new gender expression. Grow your hair out, wear an ear ring, shave your chest hair, wear clothes that hint of the feminine, start on a low level of NBE herbs, start using feminine verbal expressions, the list goes on.
At some point, your mom may comment on some change you make. That an opportunity to engage in a conversation to learn more about her feelings and let her know yours.
I bet that over a year's time span, you could be living the life of a woman to some degree with the full knowledge and acceptance/toleration of your mom.
Waiting to hear from you.
Hugs,
Clara