Take care of your spiritual hygiene with cleaning mantras such as Raum, Surya, and Vishuddi, and do protective aura meditation every day. Cleaning chakras helps a lot, as well.
Here are some resources to go through, and apply to your daily activities:
For the ones that need it: Solid AOP working - https://ancient-forums.com/viewtopic.php?f=3&t=68132
Warfare-Specific AOP [Updated] - https://www.ancient-forums.com/viewtopic.php?p=388765#p388765
Aura of Protection - https://www.joyofsatan.org/www.angelfire.com/empire/serpentis666/Protection.html
Returning Curses Part 2 - https://www.joyofsatan.org/www.angelfire.com/empire/serpentis666/Returning_Curses2.html
More information: https://www.satanisgod.org/www.angelfire.com/empire/serpentis666/Satanic_Meditation.html