The quickest and easiest ways for psychic, spiritual and intuitive protection would be:
“The bubble” where you would visualize yourself with a big bubble around you. Make sure your whole body and aura are within the bubble. It helps if you visualize the outside world, spirits, etc. bouncing off of it. This way they cannot get to you.
You can also
- visualize yourself with a shield in front of you.
- ask a positive deity like Archangel Michael to protect you (he is really good at it and anyone can call upon him regardless of beliefs or religion)
- use a protective essential oil like frankincense (do not consume it. Dilute it in a carrier oil to use on skin, use as aromatherapy in diffusers, or put a couple drops in an epsom salt bath
- keep/wear protective natural stones/crystals with you. Some people keep them in their bra, in their pockets, in their pocketbooks, etc.
-  also – you can wear them as jewelry: bracelets, rings, necklaces, etc.
- some good natural stones/crystals for protection would be: onyx, carnelian, black tourmaline, black jasper, obsidian, and hematite.
-  you can also use a flower essence (which you can consume) like Walnut, and others by Bach Flower Remedies which help with protecting our energy.
I hope this helps. Please feel free to reach out for answers to any other questions you have. 🙂