I've always heard that prog is supposed to help with breast development and shape. I can say personally that since I started prog several years ago mine have developed really well but that could vary from person to person I suppose. I'm not very well-read on the subject

I will say that prog for sure helps me with my libido and puts me to sleep at night when I take it. I'm not sure about its effects on blocking T. I started T-blockers initially and worked my way down with my doctor until I knew monotherapy was going to keep my T levels low. I started progesterone later

As an aside about not feeling great after cumming, I think there's an adjustment from T climax to E climax - my experience was that, before starting HRT, I used getting off as a big release and distraction from my own dysphoria. It's a lot harder to ignore those feelings now. I feel like getting off on E can be much more of a process where you really need to gratify yourself psychologically - which can be complicated if your body or gender presentation causes you distress

HRT changes can take a very long time to feel noticable if you aren't able to get validation from others, which can be hard to find at first. Trans friendship helps so much ♥️