I don't know who needs to hear this, but I'm legally on my fifth surname, and my tenth firstname (for some context, I'm nearly 60 now and I'm very queer and trans and have been an ordained buddhist in a cult so there have been diverse reasons for my changes), and I think I've finally got there, but if I haven't, I'll joyfully change them again.
I read a book when I was 23 in which it was entirely normal for the people in a future community to change their names any time they felt it was significant to do so, and that just felt true to me, and I embraced it. So this is me telling you: yes, it's fiddly and expensive, but a name is not necessarily a lifetime's commitment, and especially not an obligation to stay with.
I've escaped from the surname of the parents who abused me, and now have the anglicised version of the surname of my grandparent who was most like a parent to me, and let's face it, getting to legitimately call myself Greenleaf why would I not?
I've escaped from the Sanskrit male-coded name I was ordained with, and then let go of the one I fought to have instead of that, after I fled that transphobic and gender essentialist cult. I took a new firstname then that wasn't the one I have now, because I wasn't brave enough to take the name I really wanted. And then.
I've finally ended up with a firstname of a character from an Ursula Le Guin book, and it fits so perfectly - but like I say, if I ever find another name needs to happen, I'll embrace that just as readily. We change. Labels too. It's okay.