I get it
I think a lot of us get used to immediate gratification Pete - thats what our kind of drinking essentially is.
Sober, I had to learn that a lot of things take time and effort..and patience.
If delays are making you want to drink - there's not a lot you can do about delays - they're out of your control - but you can change your reactions to things.
Kinda sounds like you're pinning all your hopes on this appointment - I'm sure they''ll help but I'm not sure you have hold your breath waiting for them.
Apart from posting here, what else are you doing for your recovery while you wait?
D