I don't know, I was on hormones for a while in my early 20's but I quit. My nipples are still pretty sensitive, they weren't at all before. I was examined by a doctor who was able to tell, I don't remember his exact words but it was something like "ok now I'm going to feel your ...errr...boobs" or something like that. He didn't bring it up any more but he said something about men sometimes getting breast cancer too. I've had a few sexual partners figure out they were very sensitive too.
I never learned how to put on makeup, I was working at a factory pretty much out of necessity at the time. Taking them might have been reckless, or maybe quitting them was the mistake, but I wasn't in a very TS friendly environment and I didn't have much money to move or experience with places outside my hometown.
Right now I think getting my degree is the priority. Maybe if I end up making more money and having more freedom to move, but I'm not 100% sure.
I am just experimenting right, just got my first wig.
Should I have been born as a woman? I don't know