Hello. I'm a newbie and I need advice

I'm a 47 year old female and I've struggled pretty much all my life because of traits that I believe are associated with ASD. I have been to my GP twice and they have referred me for assessment for ASD but the referral was rejected and returned to the GP both times. I was never given a reason. (I wasn't even told I was rejected either - I had to chase that information!)

I saw the mental health nurse at the GP surgery once and I did the AQ questionnaire and scored high. The nurse said I've probably got Asperger's. That's the closest I have got to a diagnosis.

I noticed on here other people are getting referred for official diagnosis successfully, albeit you're having to wait years. I don't understand why I've been unsuccessful. Does anyone have an pointers for me please? Many thanks...