Absolutely, positively Natty
(Book)

"When Natty's mom kind of takes a break from her dad and sort of the whole family, Natty and her dad move to his childhood hometown of Miller Creek. Now she's starting middle school for the second time, this time in Miller Creek-without her mom-or her BFF. But Natty's doing great! Really. Anything is possible. And what's the point of dwelling on the stuff that stinks when there's so much good stuff to think about? Natty is absolutely, positively sure that she can turn it all around. Like 1,000 percent sure. As long as she stays absolutely positive! She'll get her dad off the couch, make her tons of new friends, and even convince her mom to come live with them in Miller Creek. First step? Starting a pep squad to spread the good vibes. But what happens when the leader of the pep squad has no more cheer to give?"--,Amazon.com.