I updated the title from “Unofficial Tutorials: Spiritual Hygiene & Defense Collection” to add “Defense” as they go hand in hand and we don’t have a collection just for general psychic defense. Setting up preventative defenses like wards are in here already so I think that fits 
Speaking of which, in the Book of Azazel by this forum’s cofounder E.A. Koetting, there is a wonderful entity to help teach you personal defense. Your very own Gunny… Lae’ti’kohl.
I have worked with her for basic defense with great success, as I’m very straightforward and not great at cunning plans.
I like her a lot, finding her clear of heart and analytical, no grandiosity or false bravado, she winkles our what’s important, points out weaknesses, lines up strategic moves and can go stealth or surgical or wide area of effect, but if you need to be undetected, avoid backlash, you’re in a watch war, or just need something more complicated than “Andras smash!”, she can advise.
