Any thoughts maybe I should contemplate to try to get an answer for myself?
I would suggest not focusing on labels, but rather actions. Labels are tools, not boxes.
Do you want to dress differently? Try different a name or pronouns? Take HRT? How does thinking about these questions make you feel?
https://genderdysphoria.fyi/ may also be useful. I'd also suggest looking up the term "gender envy".
I'm vaguely in a similar boat, I had developed basically all the ADHD coping strategies and seem to have masked very well. I basically force myself to be organised so I don't for example miss appointments, and not necessarily in a healthy way.
I only realised I had ADHD about a year ago in my 30s. I got the diagnosis in the end, and medications have been helpful though we're still working on finding just the right combination.
If the medications help then that's good, and if not hopefully something else will.