I will try to elaborate on the mind protection idea here a bit.
We all have different experiences and our minds are malleable to different extents. While someone may not be susceptible to gaslighting and manipulation, some of us are. Even if you build mental defences for years there still exists a chance they will get pierced by a skilled practitioner manipulator to disrupt your very existence. Not only on mental, but on energetic level. It’s the same as someone practicing martial arts for decades gets beaten by a street fighter.
I suggest including mirror shielding for unconscious, subconscious and conscious mind here plus training the mind to not simply shrug off manipulation attempts but also not retaining / deleting memories relating to anchors and anchors themselves. This has to be a passive element that will work even without audio / mandala by fact of ownership.