Use this spell but change the entity here to fit one that you’re already familiar with or call upon a protective entity or warrior goddess: Anat is an option I intuitively find will be helpful here, she grins the bones of her energies and scatters it to the four winds.
I modified this ritual for someone but simply add the changes I’ll give here.
Protection Spell: For the self
A drop of your blood here would be ideal but not at all necessary
And some herbs: pick and choose from this list but have at least 3, Rosemary, Sage, Thyme, Clove, Cumin.
Mix these ingredients together and keep adding more charcoal till your get your mixture as close to the color black as possible.
Now this is already in itself black salt which can be used for protection by sprinkling in corners which you feel negative energy but you can take this a step further.
Cleanse yourself spiritually prior to this however way you best can: sprinkle salt and water over your self, saging yourself all around, that is burn the herb sage and pass the smoke all around yourself, take a spiritual path, it only needs to be simple. The aim of this is trying to get whatever negative energy that’s already in to go out of you.
The aim of this spell as a whole is to make sure the negative energy stays out and whatever remains is absorbed and nullified by your black salt.
Now salt traps negative energy and black as a color absorbs light, it absorbs energy into it. The color enhances the efficacy of the salt.
Once you’ve made and ground the mix the best way you can. Consecrate this to a spirit of your choice who deals with protection: could be angel Michael, could be Sekhmet, could be Isis, it could even be to your own godself if you’re well familiar with it.
Hold your hand over the salt and feel the energy of your mix, see and visualize energy stream from your outstretched palm into it and will this energy to activate the protective properties of all the ingredients in your mix.
Take your hand away and visualize the hammer of Thor over the mixture, see the night god himself wield that power and command lightning from the heaven to strike your mix. Hear the crackling of the thunder sizzle in the air and feel the energy of protection in that mixture.
Here you can add a verbal charge to the herb ( by all means tweak or this chant however you wish ):
“Salt cleanse and render anew
Black absorb the malice and hate
Let my body be cleansed by sage
Rosemary chase evil at all corners
By thyme, cumin and clove
Let this negative energy be gone from me
From this cursed spell I am now set free
In nomine sanguinis ( if you added blood this basically calls upon the power of your blood )
Take this mix and rub a small quantity on your forehead, on top of your head, at the base of your neck near your collar bones, on your stomach directly above your navel and the base of your feet.
Do this every night and each time once you’re done applying this to your body. Stand and visualize divine light surround your body from head to toe, very bright white light that repels and blinds whoever tried to see through it.
At this point you can ask for protection from a god or goddess of your choice.
In your case i’m suggesting Thor as I can see his influence around you.
Visualize the light protect you, acting as a living shield at all times.
My body, mind and soul are set free
The eyes of evil shall not see me
Their cursed words and wicked deeds shall be reflected away from me
I am protected all around
By blood and ash and thunder
By the mighty power of Thor
I render those witches weak
Their evil shall have no hold on me”
(Visualize Thor’s hammer over your head)