Believing oneself to be an exceptional case was a common failure mode among the subjects of studies summarized in Yvain's article. When confronted with the experimental results showing how their behavior was influenced in ways unknown to them, they would either deny it outright or admit that it is a very interesting phenomenon that surely affected other people but they happened to be the lone exception to the rule.

That doesn't really preclude your introspective skills (I actually believe such skills can be developed to an extent) but it should make you suspicious.