LTL, what you are talking about going through mirrors so much of my first attempt at transition it's uncanny. Admittedly it's also a bit scary for me to be faced with that, part of me wants to grab you and shake you until you realise passability
is within your reach if you can believe it - but only because that's exactly what I'd do to 25 year old me if I ever got the chance. I'd also hug young me, take young me clothes shopping, show young me some passing tips and get me pull my head out of my @$$, stop living in fear and start living my life as a woman. Of course I wouldn't be so blunt with you...although I'd love to go shopping with you!
We all have to get where we're going at our own speed and I think you are being eminently sensible, you need to do what is right and safe for you. My concern is that the overtly cautious approach is also making you feel pretty damn miserable, something young me also put myself through because of fear rather than prudence. The number of times I spent crying myself to sleep and feeling lonely, it wasn't fun but was largely self inflicted. I know you say you have no intention of bailing on your transition, great, I just hope you don't get to the other side, realise some of the fear was for naught, wonder why you waited so long and give yourself a hard time about it...something older me has been dealing with.
I hope this doesn't seem harsh, i want to see you happy and I just sense we're both pretty good at beating ourselves up about our actions or lack thereof. Sometimes having inner strength, being spontaneous, taking the leap of faith is so much better than overthinking everything. Something else I would also love to tell young me.