This is what you are. You are highly intelligent. You are very inquisitive. You are a Narcissist. These are facts.
Narcissism is an adaptive mechanism.
Decide to suppress the first and to promote the latter. Construct lists of self-punishments, negative feedback and negative reinforcements. Impose them upon yourself when you exhibit one of the behaviors in the first list. Make a list of prizes, little indulgences, positive feedbacks and positive reinforcements. Use them to reward yourself when you display a behavior of the second kind.