It's not helpful at all to repeat to ourselves what we've been told by people with only malice in their hearts. It does no one any good. I just wish it was that simple. I do it all of the time and it sounds like you do as well. If only there was a switch that could turn those "voices" off.
At a young age, these people conditioned our brains. Now, we have to find some way to reconstruct our way of thinking. Way easier said than done.