I would say 'Yes' , starting HRT has controlled my dysphoria.
For me, the dysphoria was linked to the knowledge that preHRT, my body was still masculinizing with high testosterone levels circulating through my body...with every day that passed, I felt my other spirit (female spirit) was fading away. This caused much angst in me; however, once I started my HRT, it was as if I started taking the medicine that would heal me. My endo and I are still working on dosing levels, but I don't obsess like I previously did. I'm happy and content, knowing I'm on my way.
I will also add - I've never been an Audrey Hepburn, Breakfast at Tiffany's kind of girl. So neither preHRT or even now, I just don't do the dress and makeup thing, nor do I think that necessarily defines a 'girl'. Being a girl is - first and foremost - an internalized quality that you simply know to be true, regardless of the outward appearance. Being a girl is something that you simply know to be who you are - It's not about the dress, or the makeup, or the purse, or the heels. It's not about the presumed fashion gender dichotomy that girls wear dresses and boys don't...ergo, if you don't wear a dress...
Don't get me wrong - there's nothing wrong with liking to dress up and feel pretty, I just don't think we need to feel obligated to conform to the 'established standards of high society'. To feel feminine, sexy and empowered - there is nothing wrong with this...but there are just so many ways to do it (for me, it's about putting my hair back in a ponytail, throwing on my helmet and cycling kit, and getting on the road for 4 hours...YMMV).