I know nothing about the first idea you mentioned, but like the second idea.
I'm looking into/researching wards and shields.
I know sea salt and black salt, along with re or cayenne pepper keeps some energies away. Perhaps symbolic garlic clove on a silver pentacle.
I sleep with a certain Key of Solomon figure hand drawn under my mattress to keep some witches away.
I have a family clan banner that I may charge as a shield, especially since it has a form of a shield.
Then there is an energetic blue bubble of protection, an LBRP, invoking pentagrams or hexagrams (i.e Mars, Saturn vs Jupiter and Uranus) detrimental to an enemy working.
Drawing a circle and one of protection along the inner courtyard (immediate dwelling or entire dwelling, the outer courtyard, the land outside, speaking psalms over it or other scripture, anointing an equal armed cross with anointing oil on mirrors, doors, windows, all walls, floor and ceiling, speaking psalms 91 and giving license to dismiss at every cross.
Basic wards, shields and the LBRP.