Yeah, before the newest one, the most complicated one was on the scale of weeks. And yes they were also kind of upset if you were one or two iterations behind, despite not having seen them since their last two changes....

I remember a bit of this from when I was their age among my peers, and generally whatever it was settled in by 22 or so, a few years of indpendence tended to have people settle in, or at least if they were going to change it was going to be with more conviction than the teenage years.

I think some presume there's some "wholeness" associated with a gender identity and keep juggling around being disappointed that presumed wholeness/rightness is elusive. At some point you accept some degree of wrongness/incompletness is just the human condition, and it's not too bad if you don't overthink it, just pick the path that minimizes that feeling and roll with it.