Getting an autism diagnosis. What’s the process?

Hi, my name is Emma. 2 weeks ago, I finally spoke to my doctor about how I suspect I maybe autistic. I’ve had this suspicion for around 3 - 4 years. Tomorrow (28th January, I’m going with my dad to talk to her about this and what he has noticed about me and my behaviours, I’ve also got to take in my list of things that I’ve noticed about myself so she can send that off with my referral to the hospital. 

What I would like to know is what is the process and how does it work? I live in Wales so I don’t know if it’s any different to any other part of the UK.

Thank you,

Emma