Complex sentence: She comes across as cheerleader-esque, and is "all about opportunity" and has a big ego thinks of her self the hottest cheerleader Haddonfield had before she got kicked off.
Split into simpler sentences: She comes across as cheerleader-esque, and is "all about opportunity" and has a big ego. She thinks of herself as the hottest cheerleader Haddonfield had before she got kicked off.