>>25492454
>the world is possessed in my opposition
The other ramblings aside, you've come across the truth here. There are many people who have some sort of negative entity attachment. It's not entirely their fault that it happens, since many spirits attach at very young ages and many people are so clueless besides, but it is their own responsibility to get rid of them.
>>25492461
Generally just ignoring the problem is not going to be enough to get rid of a determined or well-attached entity. It's like telling a schoolkid to ignore bullies, it's useless. The schoolkid should learn how to fight back. If they already have him paranoid like this, then the best advice for him is to avoid staying in one place for too long (unless necessary, i.e., work, school, or sleeping), take regular salt baths to wash off any spiritual impurities, and to use psychic techniques to defend himself from the spirits.