Old behavioral patterns must be unlearned and new ones added. A new life must replace the old. The transsexual person runs a gamut of obstacles, with no guarantees of success. Indeed, probably fewer than ten percent of those who set out to change their gender succeed in doing so. And yet, tens of thousands of people are happily and successfully working and living in the gender of choice.
Transition is possible.
It can be done. It just can't be done without disruption and sacrifice and hard work. It can't be done without stubborn determination. It can't be done without money. It can't be done in the absence of support, and it can't be done without pain.