For me, it's been only 3 months since my "official" diagnosis. I had to wait until I was no longer a minor, so I could go to a psychiatrist without parental consent, but even then, I procrastinated. I had a good friend who kept encouraging me, and I knew it was something I needed to do for myself.
Of course, people have been telling me that I have ADHD for years, like they all have a degree in psychology or something.
Any other old-timers out there? I was diagnosed in the first wave of adult