As I mentioned in the other answer about protection, sometimes that witchcraft going on around you is part of your protection. So there is such a thing as too much protection. However, I do understand that some nudges and triggers are intrusive and unwanted. This is what you need protection from: anything that is not for your benefit.
Whether it is mystical or psychological is irrelevant. So much of the information our minds filter through day in and day out is processed through our psyches whether we consented to it or not, and it is a good idea to protect one’s self from negative messages and triggers.
Every person can utilize protective signalling and boundary setting. Almost every culture or belief system has some kind of protective amulet. Wear yours. If you don’t know which belongs to yours, the standard Turkish anti evil eye will do. Symbols of global unity also work, as do symbols of pluralism and charity. Rainbows, doves, olive branches, spirals, and all sorts can indicate that you are not the right target for jealousy, possessiveness, or exploitative impulses.
Scent can also be protective. This is one of the reasons, aside of the mystical properties of the ingredients, that Florida water, 4711 cologne, barber’s cologne, some baby oils, and so many things with citrus, vetiver, and/or myrrh and frankincense are so widely used. Predatory types may not even consciously understand why, but smelling like a bad target messes them up.
So wear an amulet or symbol of some sort, and smell like aggressive healing.
On a personal note, this may be one of the reasons I could not stay in a bad relationship long despite my personal dysfunctions. People could not help but reveal their motives because I was suffocating their malevolence with a constant barrage of “this is the wrong person to f*** with”.