Warning, I might not be as smart as I think I am and this may be irrelevant. I am a college student who has coasted his entire life. My father is a professor and probably the only reason I am not socially isolated. From my experience(which may or may not be relevant) being this gifted is a lot like living an RPG.
.The person you are when interacting is nothing but a character. You have to fake engagement, interest, and ability in order to have friends or you can be alone.
.You need to give your life some long term goal otherwise no work has meaning because it serves no use. However, say your goal is to cure cancer you know you have to do well in school and social to later gain access to the resources necessary for your goal. An RPG without a quest is no fun.