Im 18, and honestly haven't changed much since pre-transition. I never had muscle definition-thin legs and arms and stomach, skinny, 5'8 and young boyish not masculine facial features, and a very small end of a felt tip sharpie marker adams apple. I also had a feminine voice (when I talk on the phone as a boy- before transition- I was literally always referred to as a women until i told them my name or that I actually am the person they called for). And when people didn't look up to see me at a starbucks counter or when I'm in a large stadium like group class and a teacher asked for who said something, they would always say miss even though i looked like a boy at that time. Thats a good sign right?
Well now as a girl, with more makeup and facial and fat redistribution (i have larger hips/butt and some boobage34-b-honestly don't want to get any bigger but not a full cup size unfortunately- and facial fat redistribution) I feel like I look like more like a girl. I still have short hair, so I feel like people can still see my old self and if they really looked at me I feel like they can see a boy if they knew i was a boy before. But i think, but not sure, once I have longer hair I would most likely be passable. People refer to me as a girl all the time now, and I don't feel like people have second thoughts, but I may be wrong. I just don't know what to compare it to, How do I truly know if one is passable?
I would think if one calls someone a girl they would think they are passable, but they could just be being nice...
I just started college (sophomore)(my college is a religious conservative college and still people refer to me as a girl) too and I feel like no one gives me weird looks unless they knew me before- but everyone is nice who did know me before. And i feel like people treat me the same/normal and not special which i like.
Also, since I have the ability to buy nice designer clothes jewelry bags and makeup- and understand girls fashion and makeup since i was little, i aim to present myself as a normal girl. (not someone who wears tight skimpy clothes and dress inappropriately- which i feel like is the stereotypical image of a transgender)
But idk. maybe I'm just pretending, thinking I'm passable and just don't really know. Ofcourse no one can ever truly know, but Im just so insecure...
My boyfriend says i look like a girl, my best friend says i do, but they may lie i don't know really for sure, or maybe Im just reallyy insecure and just overthinking things..
Another random topic but I was thinking about getting hair extensions even though my hair is short, but I just don't want it to be so noticeable and what not- though my extremely good stylist said I can now since my hair is a slightly longer pixie. Just hopefully they do it right, and that I look good in long hair- afraid i won't be

Any encouragement or similar stories would be helpful! Or anyone who isn't passable what kind of feedback do you get regularly when compared to someone who is passable?
I would post an updated pic but i forget how to do it.