[Nothing like dreaming about the woman you love passionately kissing the person you hate more than anything ever. It's pretty motivating, actually. Of course, no plan hatched just after waking up is ever a good one, and this one isn't designed for making friends.
Christine is here, and though she had access to a journal at some point, she doesn't anymore, so she needs to be found in person. If she needs to be found, that means someone is probably keeping her from being found. Therefore, checking every room and knocking on doors that are locked is clearly the best course of action.]