Sorry to hear that you feel so low and so lethargic. I'm quite annoyed myself at reading how your psychiatrist behaved during your session. The advice about getting help fro gp to do course are great also , (I didn't realise this, I may also seek that out for myself) I would definitely send an email to gp and to the organisation that the psychiatrist works at. Just listing the following
It should have been a consultation and assessment as it was your first time seeing him,
However it was not, he diagnosed you ..which has not helped you at all and you require further sessions.
You feel you require further support and would benefit from the set hourly sessions as instructed by your GP,
Due to your anxiety you are unable to attend social settings at present and in order to take steps towards recovery, you require support of one to one sessions first.
You can also say in email, that by having the sessions that will begin to create structure in your day, which will be extremely helpful.
I've written it like that, so that hopefully if you decide to send an email you can just copy an paste, takes the hard work out itv it. Your entitled to support and just keep asking until you get the right support fir you, your referral should not have been a one off referral, and if he can't assist, he should find a service that can, not fob you off with leaflets.
Hope this helps, all the best .