Tarot for E Pluribus, Plurabis (plurable)
I'm so happy that I'm getting to do three different readings today :)
Here goes!
Past: The queen of spades. So it sounds like, in the past, you've always had kind of a passive, go-with-the-flow, but mature and reasonable approach to life. (That's all from the queen). In addition, it sounds like your approach might have been very logical and intellectually sound. Spades are related to things like thinking, pondering, coming to conclusions, or goal-setting. So your past seems like while the events themselves may not have been excellent, your way of dealing with them has been.
Present: The ace of hearts. It's upside down, which could represent some sort of loneliness or feeling different and set apart from others, possibly because of your plurality. The ace can also be a very good card though - it could also indicate that the emotions that you have within you are enough for you, and that a loner-ish lifestyle is good for you! But I'm getting kind of a sad feeling from this card. I'm sorry if that's the case and you feel alone. It sounds like (from your about me) that you are kind of different from a lot of the population, but there are people like you out there, especially on tumblr. So have hope!
Future: The six of clubs. Clubs (pentacles) often represent the physical world, money, items, or the body. The six is a card that comes after stability is disrupted but then returns. It's a new equilibrium. So a new equilibrium in the physical world. This could refer to transitioning (since you're transgendered), or it could have to do with recovering from an illness, or even a pattern of self-harm if you have issues with that. (This could be things like drinking or smoking, too.)
I drew another card for the future, and it was the three of clubs, which usually represents something new, like a new idea or way of thinking, about the physical world. So it could be that you come to a new conclusion about whether you want to transition at all, or something along those lines.
I hope this is somewhat accurate and good luck with everything :)