Welcome @Ducky01. My initial appointment with Warren was meant to be in July next year I made that appointment in mid September and had my first appointment at the end of October. I started my current cycle within 2 weeks of seeing him.
The key to getting an appointment is to to answer your phone and be available. If you don't answer they just call someone else, no chance to call them back. I got my call at 9am for a 2pm appointment, so you really have to be willing and able to drop everything and go.
I am on the long list of supplements but I didn't wait 3 months before cycling nor did he suggest I should. Someone has posted a copy of it somewhere in the thread if you have a look.
If you don't want to cycle until May I wouldn't be to stressed things move quickly once you have your first appointment.