You took bad advice from the wrong person.
You dumbed yourself down.
You played the role of some other person, not yourself.
You played someone else's game without expressing what you were really thinking.
You settled for an inappropriate job.
You're bored to death and wasting time in a dead end job for 6 months now.
And you call that "Damn Smart"?
[EDIT: The only smart thing you did (following up with a nice Thank You note) is the only thing that got you the job. Please don't attribute your "success" to anything else.]