As I’m aware, puberty lasts around 10 years and yeah…

Yeah, I heard...
I'll be 30 by then 😭
Jeez...

so in the one who gets fielded questions I don’t always have answers to despite really wanting them if that makes sense

No, that makes perfects sense actually. I went from:
"What's an ester?" OwO
to
"Ah yes, undecylate. You could do once a month, but the difference between peak and trough might be too much...I'd do every two weeks."
and
"18G needle to inject?? Girl, you're gonna have holes in your thighs for days" 😭

It might sounds dumb, but I can almost promise you that you'll learn way more about this stuff, without even really trying...

1. It's good that you're doing SubQ! More convenient and less painful. But 1.5ml doesn't really tell me anything, sorry...I'd need the concentration and ideally the ester to draw any worthwhile conclusions.
2. Usually, HRT consists of estrogen and also an anti-androgen (T blocker). It helps get your T levels suppressed into cis female ranges. In the US, spironolactone (weaker, diuretic) is used. I'm in Europe, so we use cyproterone acetate here (very strong, bad for your liver, also long term risk of brain tumors... :3). If you're on injections, assuming your levels are good, you can usually skip an anti-androgen. Enough E in your system will block T production by itself.
   Also...duta is a DHT blocker. DHT is made from T, makes dark (terminal) hair grow and causes male pattern baldness. If you have no T (need a blood test for that...), you should have no DHT. Is there a specific reason for the dutasteride?
3. Sounds like good stuff is happening to you! Happy for you girlie 🩷. You're still in the beginning, and the really big changes (fat distribution, face) take a loooooong time. Just hang in there!
4. I trust you...just be careful, please? You're not destroying your liver with cypro and drinking on top of that, so there's that at least...
5. Oh, girlie...🫂
   I'm sorry to hear that. Venting is really important, even more so in the beginning...having people to talk to is super important for your mental health and overall wellbeing.

by 1.5ml subcutaneous injections, i assume you're referring to either estradiol valerate or enanthate at a concentration of either 40 or 50mg/mL? if so, you're doing monotherapy - that is a high enough dose that it'll almost certainly be enough to suppress your body's testosterone production, and even if the exact dosage may need to be tuned a bit (depending on what your blood work results say) that high of a dose is clearly intended to work without requiring an antiandrogen.

dutasteride may not be a proper antiandrogen, but blocking DHT (dihydrotestosterone) can be useful for combatting the effects of male pattern baldness. now, since estrogen monotherapy will lower your ordinary testosterone levels by approximately an order of magnitude, your DHT levels should drop by about the same amount (since DHT is primarily produced via conversion from ordinary testosterone). this should be more than enough to avoid going bald since ideally your DHT levels will end up at about the same level as a cis woman (and may even be enough to revert some hair loss - i have two little patches of baby hairs on either side of my widow's peak which started showing up around february!), but if you've already lost a decent amount of hair then taking a DHT blocker could be helpful on top of that to increase the likelihood of some hair growing back.