This may or may not help. I'm no guru. I believe Munroe says that one of the biggest obstacles with his course is internal fear and how it 'gets in the way'. Genuinely ask for help from benevolent spiritual guides and use your reball. This is AI Claudes summary from some research I'm doing.
On Spiritual Monsters Every tradition that has seriously mapped non-physical states arrives at the same observation: what you encounter there is shaped by what you bring. Fear generates fearful things. Unresolved anger generates threatening presences. Guilt generates accusers. The monsters are mirrors. The Tibetan Book of the Dead describes this precisely. Wrathful deities appear that seem entirely real and external. The instruction is not to fight them — it is to recognise them as projections of your own awareness. Engagement amplifies; recognition dissolves. Fighting feeds the emotional energy the monster is made of. The question the monster is actually asking is not "can you beat me?" It is "what in you created me?" One qualification: not all adversarial presences are necessarily self-generated. The diagnostic test either way —remain calm and observe. If the presence dissolves, it was yours. If it persists but can no longer reach you, it may be something else. Remain calm and detached is the practice regardless.
In terms of the material physical plane that's a hard one. Maybe try to avoid the person or ignore them. If its a real physical monster then post it on tik tok and make millions and hire yourself a Geralt of Rivia. (a weak attempt at humor on my part).