Oscar Wilde didn't mean half the things he said, and if he meant this, then it's quite obvious that he thought of his life and profession as useless. I presume he's referring to more than just drawing/ visual arts when he said "all art." Art is the sole reason I still exist, if human life was just progression and science for the sake of science, I would have jumped off a cliff a long time ago.
That's not bad at all, most of the people doing January modules are people who are resitting it from last year, so it's those people that you're competing against. Don't worry, if you do them again in the summer you'll do much better, trust me on this. Also, the A is an incredibly encouraging sign. Well done dude.
My school didn't do January modules...we did it in the summer. 4 A's, I'm predicted this year .