my inner voice is trying to kill me!!!!

I figured out today on a run that my inner voice is not my friend at times, its sometimes helpful but most of  the time its dangerous to my growth, it questions me, frustrates me, amplifies thoughts that shouldn't be. i did a fire walk once and during the pre walk talk the guide told us to calm our inner voice, tell it to keep quite, shut the fuck up!!!! its time my inner voice took the hint.