Thanks for this. I ended up going down a rabbit hole after my post and found out that we now have something called 'Right to Choose' which is where you can ask your GP to refer you to a private practice.
From reading the ADHDUK subreddit it turns out it takes it down to under 6 weeks. Think I need to call my GP and have a conversation.
I was reluctant to as well, it's part of the "why don't you just focus" narrative we've heard for years. My therapist said, "You're a gamer, why do you want to play life on hard mode when most people are on normal mode?"
From reading the ADHDUK subreddit it turns out it takes it down to under 6 weeks. Think I need to call my GP and have a conversation.