Not me, but a fairly thorough guide by someone who has collected a *lot* of information about it over the years.

https://genderdysphoria.fyi/en/

One of the biggest takeaways is that only one third of transgender people have the "I'm in the wrong body" feeling. These are almost always the kids who have known from a young age. But that still leaves a lot of trans people don't realize until later in life.

Wade.