Estrogen often works as emotion multiplier, brainfog goes away, being able to think way more clearly than before and so on seems quite typical. I had all these things happen and at first it felt quite extreme. With time, everything has settled and adapted into a new normal state of mind. Emotions keep being on 11/10 though and I love it. Much less anger, but I'm easily sad and easily depressed but also get out of it quicker.
Acne on BO seems to happen to some. And I know HRT alone does some of that too. Nothing strange about it, usually it seems to last for a while and then settle later.
I have no idea about psychelics as I don't touch any of it, not even weed as it feels so different now. I would presume it could get more intense than before?
Breast development is highly individual thing which has everything to do with your genetics, age and the HRT/NBE program you're on. Getting started might take quite long time and at first, development might be slow, and then speed up later. Mine was much slower before Tanner stage 4 where things went on crazy super fast growth spurts. Then slowed down again and sped up once more in last few months due to some hormone changes etc. So it might take quite a while, some get budding immediately, others take their time. Breast growth is almost never a straight line, its not linear and never stable, speed of changes and time each development stage takes is a bit random. If you have several months without much change, that's no reason to worry.
Gay? If you're a trans woman and into men, you're straight. Its kinda interesting about orientation, some people do a total U turn when they transition, others stay as they are. The dynamics change though, I'm still mostly into women and femininity in general just like I've been all my life. But now that I have transitioned that changes things, obviously straight women don't care about me any more and cis gender lesbians are mostly awkward too and there's some things about my relationship which makes things... Interesting. So that leaves me with other transsex people and that's it and as I'm mostly into feminine ones, that means trans women and non binary people. Mostly. Its strange, but I didn't experience a major orientation change unlike some people do.
But a trans woman who's into guys is straight because she's a woman. lol.