What Dena and Katie said. I would only add that transitioning is not only very hard, it is also very expensive.
When I started buying female clothes and makeup, I was shocked at how fast the cost of everything added up.
Right now as I sit here, I am wearing: Hollister skinny jeans, $25 discounted, Cable & Gauge blouse, $20 discounted, Victoria's Secret bra, $50, panties, $5, OPI nail polish, applied it myself, $6, Revlon concealer to hide beard shadow, $10, Revlon lipstick, $10, Louis Ferre synthetic wig, $275, women's reading glasses, $20, Agape sandals, $25, Steve Madden handbag, $40. Total, $486.00, and this is not even one tenth of my femme wardrobe.
Being a girl is expensive. In order to transition, you need a job.