I was diagnosed exactly a month before you and also went to see consultant on my own.
The consultant wrote to my GP and also the Parkinson’s nurses. In the meantime I found the number for the nurses in Leeds and rang them. The nurse I spoke to was lovely and she reassured me about support available. She also got me an appointment to see another of the PD nurses within a week and she did an assessment and decided on medication. She then wrote to my GP with my prescription and I went to see him last week. I started medication 2 days ago. It is the nurse that prescribes the medication via the GP.
I also contacted the PD support worker for my area and a local neuro physio (the NHS physio has a 12 week waiting list). My consultant was very clear that exercise is a vital part of treatment along with medication.
This site/forum and another site called health unlocked have been great sources of information and support, just choose wisely what you read at this stage.
I hope you get some appointments sorted soon.