There is nothing wrong with utilizing racial stereotypes, depending upon the motivation and context.
For instance, Stephen Colbert utilized a racial stereotype in order to devastate the owner of the Washington Redskins. He did this deliberately, and it was funny as hell. But guess what happened then? A person very much like you, who is plagued by self-hatred, decided to not analyze the motivation or the context, which resulted in her looking like a total moron... which is exactly what is happening to you, right now.