ADHD

If it helps, where I live, the waiting list is over 5 years. We don't have Right to Choose here but from talking to people living elsewhere, Right to Chose does tend to be quicker so it may be worth enquiring with your GP about that again. May also be worth enquiring with your uni if they have means of organising an assessment. Failing that, going private is probably your only option, but be ware that GPs are often reluctant to prescribe medications that are recommended via a private assessment so you would need to factor in costs for private prescription too.

WOW.... I thought in Israel it was awful. Here it is 2-3 years wait but insurance cover the privet clinics (at least for students u-18). However, here it looks like they push medications and the whole process seems to be built to prescribe more and more medications rather than coping techniques and stuff.
I was very lucky to find a good therapist and lucky I was taught to study in the right way for me ever since started school so my ADHD wasn't so bad during university. I was even in denial being ADHD until recently. I had a diagnosis but I was more paying attention to my dyslexia than ADHD. Dyslexia was much more noticeable (how can a good student write the same word 5 times in a different way and none of them were right).
It looks like in UK they try to avoid over use of prescription medication for ADHD. It is not always the right way, but on the other hand, they also don't teach coping techniques either. I've spoken to some people with ADHD in USA and UK and it looks like in Israel and USA they invest much more on coping techniques while still pushing medication... sounds strange.

The mental health system in the UK is shambolic in general.