Caddie is starting over: she's earned a spot at the performing arts high school for her junior year, and reconnects with an old friend in doing so. Caddie's patents are also starting over, in new, individual lives. Caddie is pretty sure that her dad will one back, as long as she listens to the part of her brain telling her not to touch anyone. No skin contact would be difficult anywhere, but it's doubly hard when rehearsing as Ophilia to her crush's Hamlet. 
 It's a good look at OCD and anxiety disorders, though it stops short of actually treating them. Eventually (potential spoilers?) she connects with a former therapist, but her healing seems more about pulling herself up by her own bootstraps. There is an Author's Note describing the author's own struggles with OCD, but it's not as clear in Caddie's story. 
 Would recommend, but I'd also push ... Ahhh, what's that one called, with the boy with severe OCD.