For me Its quite simple. My brain decided it. Literally. The days I found out I’m trans, my brain would do this weird thing, where I could think about completely different stuff and suddenly my now chosen name would “fly” into my mental Field of View, like an asteroid in star wars or so. I told that name a close friend and 4 weeks later when we went to the club together I told him, that I will stick with it, because I didnt had a better idea (and it was the only name I really felt comfortable with).
I had actually agonized over a new male name before, and eventually I settled on Hal… and it didn’t take long before the idea of a Hailey appeared… I couldn’t shake the name so it ended up sticking to an idea of an idealized partner. So when I found out I’m trans, it was only natural to pick Hailey.
Now, there are multiple equally valid (and a few invalid) ways to spell it so that was just kinda vibes
(the really sucky part now is, I now have three names for myself, the only place I’m currently going by Hailey is here… and I never finished rolling out Hal, so it’s kinda breaking my brain that now I want to kinda clean all that up. Domain names, usernames, display names… school is the only IRL place I managed to go by Hal, everyone else knows me by my birthname… I’m holding back on tangenting on the logistics of social name changing & of course coming out…)