Antidepressants do the exact same thing as alcohol; both have the same effect on the brain. Both will cause your most innate, personal desires to evaporate in favor of a path that, leading to long term happiness or not, will seem easier. You will waste your time fulfilling this easier path only to end up in the same position when the real world finally hits. Antidepressants, quite literally, are designed to turn smart people into morons who accept any sort of positive seeming advice that comes their way; the abolishment of the mind's natural phobias is a one-way ticket to forgetting the reasons behind your feelings, the essence of what you want to accomplish.
Literally all gender disorders are both amplified and caused by a reaction to a quite realistic perception of gender standards; however, studies prove that these perceptions are innately strong and impossible to overcome medically or emotionally. No one is born being aware of what a penis or vagina is, or even what a girl or boy is. It's the way that our innate mental balances interact with facts of the real world that cause someone to be transgendered; this is also the reason transgenders have personalities of all sorts.
Quite literally, I'd like to know one transgender who can honestly say that they're transgender because of no outside source. Wether they were influenced at the age of 3 by genders on television shows, by sisters, mothers, fathers, or brothers, by friends, by storybooks, by stress, by health, by whatever, I don't believe it's possible that someone can express the emotions of being transgender without knowing what the opposite sex is first. This is quite detailed in the studies of feral childen, children who, in remote parts of the world, have grown up with animal packs or extremely low human interaction - they show no innate signs of being human.
The real question is - do you want to forget, or do you want to accomplish?
A pinpoint example is this: Say you're a transsexual who's a haggard man who feels like no straight man or audience would find him sexually attractive or girlie because of the manly image his appearance gives off, and thus this issue creates a shyness of the outside world. Transitioning and FFS would allow this man to tackle the outside world in his true identity. Anti-Depressants combined with Therapy would convince him, at best, to become a Drag Queen - that is, if the therapist and anti-depressants didn't convince him to join a church and rebuke transsexualism altogether.