FYI, you don’t remove the internal dialogue; you remove your willingness to engage in it.
Via your actions and cumulative intent, you break the agreement to talk to yourself, and redeploy the energy you’ve fed into that delusional pattern throughout your teen and adult life:
Post On Rumination and Not-Doing
Another post on “forcing silence”:
/t/forcing-silence-what-will-my-next-thought-be/3831