You're so blessed to have figured this out at 19...your body is still ripe for changes on HRT and you will be amazed at what happens. The changes are subtle, but when you see them evolve over time - the result is phenomenal. Everyone is different of course, but personally, this has been the result for me. I am 24 years old, started hrt 8 months ago when I was 23. I was living full time as a woman already when I started, because I wanted to, and trust me I did not pass. No one saw me as a woman, just a drag queen. At 4 months I started to pass. It was as simple as that for me, I know a lot of other girls aren't so lucky, but my point is just that HRT changed me in significant ways in 4 months and since then I have passed consistently. This is of course coupled with the fact I have worked very hard on my voice, makeup, clothing, etc.
However, the other good news is that between 6-8 months my facial changes became so significant that I now don't have to wear makeup, and I still pass. In fact, for the first time in my life I look better without makeup. My skin was always a thick mess of cystic acne. When I started HRT my acne was HORRIBLE and painful and ugly and I was so oily. Now I have clear, soft, healthy skin. I still get little pimples now an then but nothing like before. This alone was the most amazing change.
My bone structure is slight, so that is a huge advantage...but of course my shoulders are broad, hands larger, head larger...Those things are a source of insecurity for me, but I need to get over them. When your body becomes a woman's body physically, those male characteristics need to be re-evaluated as accentuations of a female body and not remnants of a male one. That is of course idealistic thinking, and it all depends on the severity of your "male" features. Some of us need FFS to be the women we are, others do not. My face is very passable, but my profile is not so much (if you ask me). I have a brow ridge that is not HUGE but is relevant, and I desperately want it fixed. However, it has not kept me from passing as female. But I wear bangs, so it is often concealed. I will say, though, that whenever I talk about getting it fixed my friends think it is unnecessary. I don't know if I can trust them with that, because they love me so they don't see something like that as a big deal - it needs to be my decision.
My point in telling you my story like this is just to explain how in transition we have to work with the changes as well as the base structure those changes are on top/a part of. Sometimes you will be able to honestly see yourself as a woman with broad shoulders, and other times you will need to address a characteristic that is just undeniably making you look male. I think we need to be very patient, and to trust ourselves. I imagine my forehead might seem like less of a problem in a few years, when I have had srs and my breasts have come in fully...and I am more full bodied a woman. However, it could be jsut the opposite, and that part of me will be even more problematic. We'll see. I understand your concerns are about body parts that may not be able to be surgically altered. But your thick chest will likely change a lot on HRT - and it will also probably blend into the rest of your full bodied change as one of those slightly more masculine qualities of your womanhood, but it won't necessarily make you look male. Also, keep in mind that our dysphoria often clouds how we see ourselves. You are young and that is a huge bonus for HRT to get good results. If you want to post a picture I am sure people would be happy to tell you what they think about your potential results...Take care
