Idk what your experience has been, but make sure you emphasize this is a long term disorder you've struggled with. Make sure you understand what your issues were with some examples. Here's way too many of mine that might help you remember yours, or just copy some of them; I'm not your boss, do whatever.

In my case, no one diagnoses an honours student with ADHD because apparently they're fine, but I was only fine because everything before uni was easy to me. I brought up much I might procrastinate on certain things, how I can get distracted on many assignments or tasks and be forced to finish them in a manic state at 3am, how many hobbies or projects I pick up and dive into and never manage to stay motivated or finish them, how I just forget to eat or clean or do important tasks because I'm too distracted by something that isn't time sensitive but I feel I need to finish before I move to anytjing else.

What specifically got my doc to say ADD rather than "just bad at paying attention"/"doesn't quite fit ADHD" was that i had bad habits in school like reading novels under my desk, playing games, or doing homework for different classes during school, but since I had been specifically taught not to cause distractions to other students i never really acted out because my parents said that was rude. As an introverted kid I didn't want to be centre of attention and be singled out like the kids who wouldn't sit still in class, so I found ways to distract myself but I wasn't learning important things while i did things like counting tiles on the ceiling or resorting all my school supplies, or reading irrelevant parts of the textbook that I found neat. This translated into very poor study habits where I either knew the material because I had already learned it because it was an interest of mine, or I found it easy to just bullshit my way into the right answer, or I didnt understand it at all and had to churn out nonsense on tests, or teach myself the whole subject the night before. It didn't affect my grades until the material actually became somewhat difficult or dense or there were several things I needed to teach myself at once; math and science were my worst subjects because of my bad habits so I just never took those in high school so my grades stayed high, university made me take subjects I didn't already know so I did poorly.

They might want to avoid giving you any of the more aabusable/resellable drugs like ritalin or adderal so I wouldn't request them by name because thats a bit of a red flag. My doc put me he on vyvanse (lysdexamphetamine) because he said there were less issues with it (there's still issues with the med, just not as abusable/addictive). If you're already being treated for anxiety or depression it could be harder to find a working medication because some docs prefer to treat different disorders first (mine focused on ADD but yours might want to sort out the anxiety first) and this might mean they do several trials of different meds before they give you something that fits.

Best of luck comrade!