2 friends, one goes away for the summer and creates a list for the other

[Destiny]

POSSIBLE SPOILERS
Y/A
I read this book in middle school around 4 years ago.
two tennagers are best friends, one goes away for the summer and compiles a list for the other friend to do to get her out of her bubble.
list includes: skinny dipping
stealing a sign
going to a party
appling to the job they both wanted.
i think theres about 20 things on the list
at the end of the book it gives every song that is metioned in the book

[Becca]

Since You've Been Gone by Morgan Matson?

[Lobstergirl, au gratin]

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