Hey Harry,

I can recommend you to take a look at these:
http://www.astraldynamics.com.au/con...-Light-Shields
http://www.astraldynamics.com.au/con...Psychic-Attack
http://www.astraldynamics.com.au/con...eg-Attachments
http://www.astraldynamics.com.au/con...rossing-Method
http://www.astraldynamics.com.au/con...-Image-Removal

I also recommend you to get Robert's book "The Practical Psychic Self Defense Handbook: A Survival Guide" if you have difficulties getting a physical book or don't want to get one, you can get the ebook version of it on google play store or kobobooks.com.