Why is it so hard to get an ADHD diagnosis? How do you find a good psychologist?

(warning and TL;DR : long and kinda ranty - I do want advice but this also ended up being me venting about my frustrations with two separate medical professionals)

I've suspected most of my adult life that I have some form of ADHD; some mornings I face debilitating initiation paralysis that causes me to be up to 2 hours late for work; I forget conversations happened and my mind is in a constant jumble of starting 5 tasks and finishing neither; sometimes I hyperfocus and sometimes I lack any focus - seemingly at random - and other tiny tidbits that upon a cursory glance through medical material, scream ADHD to me.

I've learned to cope with most of it, and thankfully I have a pretty chill job that lets me be flexible with my schedule without issues, but when you look at everything in context, it's pretty clear that my quality of life could be so much better if I sought professional guidance and medical attention.

So I did just that; went to my clinic, scheduled an appointment with a psychologist, and I dragged myself there.

I did my best to be objective and factual about my behavior, I made notes of stuff I did and symptoms I experienced over the course of a week, and answered every question as openly as possible, and yet everything felt wrong.

The psychologist didn't see ADHD in me, and instead chose to pursue my childhood and familial history, narrowing down on signs of anxiety. That felt viscerally incorrect to me, as it didn't reflect how I perceive my behavior. The way I understand anxiety doesn't align with how I think and behave. I don't worry about things when I am stuck in bed - I am pleading with my body to let me move so I can do the things I enjoy. I don't dread going to work - I want to go to work, and my brain says no. That is not anxiety, no matter how you frame it; at best, any signs of anxiety I may have are a byproduct of my struggles with executive dysfunction.

At the end of the session she recommended I return for a few more sessions so we can build a proper profile of my background and identify what we need to work through. But before that, she mentioned I could also see a psychiatrist, and ask them to refer me to her so the sessions could be paid for by national healthcare (I'm Romanian, for context).

So I did that, booked an appointment with a psychiatrist that seemed alright, and I basically hit the same brick wall I did before. My issues aren't neurological, they're behavioural - and I just need some counseling and discipline. And my inability to make my body move in the mornings could be just a sleep hygiene issue.

You've all heard or read about women having debilitating period pain and just being told to drink water or eat healthier or maybe go for walks more often, right? This felt like that; I'm facing a clear disconnect between my brain and my body, I have my daily life disrupted by things that are 100% out of my control, but apparently I just need discipline and better sleep. I don't buy it, as much as I want to.

I got so frustrated during the session that I started involuntarily masking and going along with the motions just to have it over. Internally I was on the verge of tears but I put a pretty smile on and left the room upbeat. That is not normal. I need help.

But they just don't seem inclined to want to offer it. I am a firm believer of Occam's razor but the psychiatrist's conclusion didn't feel like the simplest one - it felt like a massive oversimplification.

I did get a recommendation to take the DIVA-5 test (because neither of them were qualified to do it) so now I'm searching for a psychologist that is certified (which are rare, and pricey, from what I can see).

But until then, I just feel disappointed, misunderstood, and honestly quite angry. I asked for help and was given what amounts to scraps. My lived experiences were invalidated in front of me, in the places that were supposed to validate them and guide me towards finding an understanding of my behaviors and my mental health, twice in a row.

Those of you who got diagnosed, how many tries did it take? Is this the norm, just hopping from clinician to clinician until you find one that clicks and feels right? Or did I get massively unlucky?

Also, has anyone else taken the DIVA-5? How did it go for you?