The Girl With Eight Identities

Cassie's family is out of the ordinary. With crazy, eccentric parents and seven very unique siblings, life for her couldn't have been normal even if it weren't for the traveling. Her family moves every summer. It's not because of her Dad's job or any real reason, their parents just love experiencing different things, and different places.
They travel the country in their RV every summer, until they find somewhere to settle down for a year. And then they pack up and move out again.
Cassie found a way to take advantage of this, and maybe even turn it into a great social experiment of some sort. She changes herself every year. She creates a totally different, totally out there character for her to become, and using her drama-queen natural attitude, plays the part perfectly.
But senior year is coming. Her time to continue this is coming to an end. And she just wants to be Cassie. But she can't remember who Cassie is. So now it's time to find out.
With her natural magnetic attraction to people that are a little out there like her family, she'll finally figure out people and life.