HRT can doing amazing things even if you have gone through the puberty without blockers. Unfortunately, generics play a large part in that too, so it's luck based. But don't give up hope just because you didn't receive blockers.
I didn't realize I was trans until I was 22, started hormones just before my 23rd birthday. Now 5 years later, I seem to pass and looking in the mirror doesn't hurt much at all anymore. There is hope, even if you didn't start when you where a teenager.
Same. I have broad as fuck shoulders and wide chest. It sounds like you are listening to transphobes with there "archaeologists will know by you bones" bullshit. (And it is of course bullshit) Humans, regardless of sex and gender, come in all shapes and sizes. That's doesn't mean we can't find happiness and people that love us for who we are. Everyone, cis and trans, has things about their body they wish was different. Even the trans person who was able to use puberty blockers. You need to find the strength and self love to accept those parts of you and focus on that parts you do love about yourself. It's not easy, and it takes time, but you will never find happiness with yourself if you only focus on what you don't like.