Hey RavenL
HRT for me was the most exciting step of the whole process! Congratulations that you've gotten this far!
I have to be honest, you've done a lot more than I ever did to prepare, I could never have stuck to a diet of any sort with my high appetite and metabolism. I personally haven't had any issues with bone strength at 5'7" and I took up gymnastics again about 1 year after starting HRT but your mileage may vary. Are you into sport or something? Otherwise, I wouldn't think trying to maintain your muscle mass would've been desirable but hey, you probably have your reasons.
One thing that's sure to be important is not to set yourself up psychologically to expect massive changes. Oh, they will happen but it will be slow and often below what you would absolutely like! I've been lucky as small breast development suits my athletic figure but I definitely have been struggling to get what I would've liked.
When I first started, I was watching very closely every single day for change to happen. Yeah, I got painful boob growth within a week or two, but it took 2-3 months to start to notice any change. YMMV of course. The only really quick changes are things like strength, skin tone and oiliness, and the beginnings of hip fat. However, don't get caught in the trap that I did of trying to get a flat belly! It's not physically possible! And girls actually have tummy fat, it's just kinda resting slightly lower down where your uterus would normally be.
Otherwise, best of luck to you! The psychological effects are probably the most exciting.
Much love
xx
