How many of us grew up hearing criticism? Well, if we are human, all of us did! The question is, how much did you internalize it as a kid, when your ability to question and analyze was much less than it is now? To this day, you may live with limiting, nagging voices, which are a composite of the Gremlin, that Inner Critic based on all the negative ideas you have come to believe about and tell yourself about.
Come check out this article I came across, very well written, for some ideas on how to banish that Gremlin, and to start planting a beautiful new Creature in its place.