Had my computer's O.S. corrupted a few times over the years, mostly as a result of unwittingly allowing corrupt information to be absorbed by the hard drive. The solution was clear - format the hard drive and start with a "clean slate."
Likewise with the brain and the WTBTS's "viruses." Mentally wipe off what's been stored and start again - this time not allowing external influences to corrupt & control how your "O.S." functions.