Jules has posted some useful tips for people starting "vicar school."
I'd just to like to add that weird combination of "alt-lit" the congregation will never let you get away with in real life, combined with over-sensitivity / preciousness / fear of offence. Which can also spin off into superb fussiness. Basically if you go for lunch and there's a sign up saying they will only cater for meat eaters, vegetarians and people with genuine food allergies - you're probably at some kind of church meeting and quite likely a vicar school.
The Book of Common Prayer is a work of beauty. The hymns of the Wesleys a delight. The Traditional Mass a thing of profound beauty.
So if you find yourself leading a service focused on Mother Julian of Norwich, and you've got the sound of doves crying on the PA, and you want to give everyone a hazelnut to contemplate - but it's spring so you got a bag of shelled hazelnuts from Waitrose - but then you worry about nut allergies so instead of handing them out you put them in bowls as nibbles - but then you're worried about the people with nut allergies feeling left out, so you have to rush out and buy some of Mother Julian's favourite flavour of Doritos - you've hit peak vicar school. Either you have to get ordained and do some real life, or you join the Beaker Folk.