No problem, serious answer:
This is the DSMV criteria: https://www.cdc.gov/ncbddd/adhd/diagnosis.html
Doctors are typically screening with a quiz that looks something like this: https://psychcentral.com/quizzes/adhd-quiz/
It's perfectly reasonable to say "I think I may have ADHD based on what I've read online, my symptoms match and people who know me have suggested I try adderall".
Some doctors are fine with letting everyone have stimulants, because they're pretty harmless unless you're really binging on them, and they won't give you enough to do that for very long.
Other doctors would prefer to put you on an SSRI or SNRI or wellbutrin or some other "non-addictive" medication (which ironically are more addictive, dangerous, and less effective), so avoid those IMO. You may have to shop around a bit, but your primary care doctor technically can write the prescription, but some prefer not to and you might need to find a specialist.
Contraindications for stimulants are if the patient has a history of heart conditions, complains about racing heart rate, excessive sweating, trouble sleeping, trouble eating, etc.
You generally want to start with a low dose of "instant release" as opposed to "extended release" pills, so you can have more fine grained control over the dose. IR pills can be broken in half, XR cannot. Some doctors are more nervous about IR than XR because they think it has more abuse potential (not true, but it's a common belief).
With all that said, stimulants will fix the problems OP described, but don't mistake that for a pleasant experience. The truth is that amphetamines are extremely mentally exhausting, and if you don't take good care of yourself (planning proper meals, staying hydrated, resting at appropriate times, not taking more pills when you shouldn't), you can quickly spiral out of control. It's hard to explain to someone that doesn't do drugs, but stimulants can leave you feeling like a shell of yourself, and it's really disconcerting. It's sort of like being over-tired where you're awake but your judgment is clearly impaired and you don't feel like "you". If you stay on them long enough, you'll start to feel like a zombie just going through the motions (successfully, mind you), but without identity. I make sure to take weekends off to preserve their efficacy for the work week and to make sure I don't become too dependent.
I'd 100% recommend having stimulants in your toolkit, and chances are you're already supplementing with worse stimulants (like mountains of coffee or soda), so do give them a try, but be careful.