Hi, Camille. I'm of the mind that we can never be certain that what another person feels is exactly what we feel or have felt, and yet there are many times when it just seems incredibly unlikely that there isn't a significant common experience.
This is all still very new to me; I just realized I'm transgender in February. Since then, I've acquired a decent starter wardrobe of (simple) women's clothes, had three laser hair removal treatments (beard), one session with a gender therapist (two days ago), and come out my mother (last week) and a few close friends. In the grand scheme of things, that all feels pretty rapid to me, but I've carefully deliberated each step and decided whether it felt right for me at that moment. I'm in no hurry.
I agree that coming out to people is very much a part of the transition, because it changes your social environment in a way that can free you to be more your authentic self. I have definitely felt excitement about telling people who I really am. After telling my mother, I thought, "OK! Who's next?" But I also recognize the value in being patient and thoughtful. I don't want to overwhelm people, and I don't want key people to find out from someone else. I also have plenty of other things going on in my life, so I don't want my evolving gender identity to eliminate those from my precious summer.
For myself, a lot of this has been a surrendering to "what is" and accepting that there's a lot that I can't control or manage the way I might want to. At times that felt unfamiliar and disorienting, and I might have described it as a runaway train. Since getting through the in-shock phase, I've felt much more like I am in charge of my destiny and I have a responsibility to steer my transition in a way that serves me well.
So... If you're enjoying the runaway train aspect of your experience, then congratulations! If you're not, you may want to slow down, breathe, and see whether there are opportunities for you to pace yourself a bit more than you have been.
And, since I'm no expert, I'll always recommend a gender therapist to help you navigate it all. It's a lot for anyone to take on.
Wishing you peace.
Pema