howdy y'all. i've been playing the new harry potter game (i know. i'm a gay). i've gone through the movie portion of the game and am now trying to get crests, badges, etc. i feel like i'm just running around and not doing much. how do i get into the slitherin dueling club? when will i get to make the last potion in the potion club? how do i get the crests that are sitting above doorways?