Fear of success?

Here's another surprise: Checking out my high school grades, I was consistently at an A level for Maths and Science (and Music once it became an elective), while more interesting subjects like English and Study of Religion have been more often in the B's. Have I been disregarding Maths and Science simply because I found them too easy? Conversely, was I interested in English and Study of Religion simply because they were challenging?
If so, I should certainly try to begin this uni course with a more open mind. And if the subject turns out not to be as interesting as I thought, maybe I should start failing!