if i had never figured out i had a choice of what i can do in the matter of gender
The internet might have helped you get to that point quicker, but the matter of choice springs first from doubt. As long as you would have have the doubt sooner or later you would start to think about other possibilities, and hence, choices.
And, no doubt, a lot of this has been made possible during the same time as the rise of the internet - but, at least in the beginning - it was being driven by different factors than the internet. Widespread hormone treatment, RLE, therapy specializing in these issues, surgery outside of one or two in the world all come about in the 80s and hit a kind of critical mass in the early 90s, just as the net was beginning to form. But people were transitioning before the net. It was just rare - in that only a very few people were doing it and it was fantastically expensive. But a few in the 70s turned into a mini-movement in the 80s, and by the end of the 90s a lot of stuff had been put into place, and enough people processed through that it became widely (but not universally) available.
And there was some information back in the dark ages, pretty much all clinical psychology, Dear Abby columns and Myra Breckenridge. By the time I started to check out information in the early 70s' there was stuff to find, and unlike the net, most of the information was good, verified, and simply stated - as opposed to being crusaded.
The net helps, for sure, but every tool is a weapon if you hold it right, and it's one of the strangest and most far reaching social experiments ever undertaken - and it's pretty much been undertaken by chaos, no rules, no laws, all information appearing equally and very hard to check, information from sources that, though it sounds good, is more than likely not going to be possible from other lives. Knowing what options were open to other people, does not insure your ability to obtain those options. And that can be very hard.