Just for the record, as someone who started at eighteen, starting at eighteen DOES NOT in any guarantee that a person will be attractive or passable...I get gendered as male a lot of the time if I'm not wearing makeup, and I've been on hormones for more than two years. Sixteen is the cut off hon, and to be honest I bet a sixteen year old would say fourteen is the cut of. The only girls who do not have sub-standard results, who are able to actually look like normal women, start in childhood. Either that, or they have facial surgery, or are born lucky, in which case I want to slap them in the face repeatedly.
And listen, if I measure the success of my transition on my ability to pass, I've failed. I will probably never have a good career. Nobody will ever want to date me. I started at eighteen, and two and a half years later I'm fairly sure I "failed".
But...I don't know. I regret a lot of this, but my life is still marginally better than it was before. My dysphoria is a lot better than it was...and if I lived in a world where people were not so hateful towards me, I'd be happy. I won't tell you to accept what you have. If being accepted by the world around you is more important than being yourself, absolutely consider detransitioning. If you aren't prepared to weather the obstacles we face as trans women, don't be a trans woman, that's my honest thought here. But if you are able to love yourself even when the world is going to be unkind to you. Personally, I like the way I look, I'm hella androgynous and I enjoy that. Being accepted would be nice...I wish I could have that more than anything in the world. And I do consider going back every day of my life when people stare at me like I am some sort of freak. But that doesn't seem like a life worth living either.