This might be a bit sensitive of a question to ask, but what country are you in? Because I've lived in several western European countries and the access to healthcare wildly varies between them. Especially countries that've "enjoyed" a multitude of conservative/right wing governments over the past three decades seem to have really embraced enshittifying healthcare access and affordability while pushing an American-style private system as the "solution".
I'm sorry to hear that. And yes, it's depressing to see these "privitization will save us all" types destroy public services using the same old playbook of "defund, defund, defund, point out the issues after decades of defunding, then start to slow-roll private options until the public service has been fully hollowed out" everywhere.
A psychologist/psychiatrist is not a therapist, it's a very different pay grade.
A therapist will usually consult with a psychologist to get you recommendations, and will help you work through your ADHD. It may take a couple of attempts to get a good one, though.
The difference is less that it's in some circumstances only marginally better. Rather, it's more that when you advocate for better coverage in EU, the pushback might be more along the lines of "that's too expensive or an inefficient use of highly limited taxpayer dollars, but I'm open to continuing to evaluate the impact and economics of it". In the US, sometimes the pushback is "you don't like it? Then GTFO, you communist traitor!"