>I would love to hear more about you're experiences growing up and especially the dysregulation.
Dysregulation[1] was Hell on Earth, in the literal sense. Very little in life works the way you think it should, and the reaction to these things constantly going wrong is extremely intense, negative, emotional unable to be controlled in any real sense. You lose the ability to reliably form even basic episodic/autobiographical memories, and with it any sense of the past or future. Entire chunks of your life go missing and you don't know what day it is, where you've been or where you're going. All you know is that you're constantly exhausted, nothing makes sense and everything just feels wrong. You don't know how long you've felt like this, and you don't know how long you'll continue to feel like this. As far as you're aware, past and future suffering will keep going on for eternity. And you will do anything, literally anything, to make it stop.
For me, I was fortunate that my mum took me to a sleep specialist, who recommended getting my adenoids removed and prescribing an extremely specific sleep schedule which I followed to a T (all screens off at 9:00, in bed by 10:00, I don't remember if there was a specific constant time I needed to wake up by but I suspect that was part of it to. As an adult, I now supplement this routine with melatonin). This was enough to get me from a state of complete dysregulation to "garden-variety" depression, which eventually I overcame with the help of a supportive network of friends and parents who (semi-forcefully) steered me down a path where I could succeed.
A hypothetical AussieWog98 might have convinced himself that the cause of the dysregulation was gender dysphoria, cut himself off from the people who really care and spent all his time online with other people just like himself until one day he couldn't take it any more.
I really, genuinely believe that this is what is happening today, at least in the case of some people. For others (especially people who transition later in life), it really can help them be comfortable in their own skin, and this is of course where the trans "debate" gets hairy.
[1] This is not technical language, but is the best and most concise word I can use to decribe it. There may be a more appropriate technical term, or a more scientific description of what is happening (seizures in the amygdala?). Feel free to comment if you have any scientific information or proper terminology, I'd love to read the literature on it.