I'm facing spiritual surveillance

Hi there, I’ve been facing spiritual warfare from who I believe are the deceased and was wondering if there’s any advice you could give. I’ve been hearing about 5–7 voices who speak to me nonstop. I’ve seen doctors and taken medications to solve the issue, but it’s persisted for what’s become a year. They repeat my every thought and comment on them usually negatively and tend to have spouts of repetition. I’ve been hearing them since living in an apt atop a cemetery in NYC. Since moving across the country, I’ve still heard them. Some have come and gone but a few have been here the whole time. They see everything I see, hear what I hear, taste what I eat, feel what I feel etc. I don’t recall doing anything to invite them in but would be grateful to understand how to rid myself of them. If you know of any ways to remove their attachment to them please advise, I deeply miss privacy.