I’ve never been to the UK, I’ve only heard it’s similar to the situation in AU second hand from people who have actually lived there.

For example when I needed to see a psychiatrist it took 18 months, a rheumatologist took 24 months, and general medicine physician took 20 months. My ex’s psychiatrist took 12 and psychologist took 6, only because it was a critical emergency. I’m glad you had a good experience though