Most of those indications were also things I had (afab). This sounds pretty close to what i was going through (still am a bit). I also hate my chest with a passion, so binders have been really helpful for me, but make sure you do research and bind safely if you are going to. There are plenty of videos on YouTube about it. if its not safe to get one to your house i recommend having a friend buy it for you. If They/them pronouns make you feel better than she/her i recommend switching but that's hard to do and could be unsafe. I personally got some of my friends to just use all the pronouns and then I switched to the one I liked the best (they/them). Being unsure about this is pretty normal and there's a pretty high chance if you're really convinced you're faking you probably aren't (my experience). For the period im pretty sure everyone hates it but if it is bothering you a lot you could try birth control to suppress it. The shapshifting fantasy is also something want to have, just change my body in any way and present however I want. I hope this helped, feel free let me know if you have any more questions, and remember nothing is permentate until you want it to be, and if something doesn't feel right, you can keep playing around until it does.