Complex sentence: Summer is just like so many other young girls trying to be what society dictates as beautiful today, occasionally called the "cookie cutter beauty syndrome", meaning unless you are a size one or two you simply are not considered beautiful.
Split into simpler sentences: Summer is just like so many other young girls trying to be what society dictates as beautiful today we call it "the cookie cutter beauty syndrome". Meaning unless you are a size one or two you simply are not considered beautiful.