Complex sentence: She went on to study journalism at the University of Connecticut and then at New York University, while acting in television commercials to earn extra money; she has said that she dropped out a semester before graduating due to her success as an actress.
Split into simpler sentences: She went on to study journalism as an undergraduate, first at the University of Connecticut and then at New York University. She dropped out of college a semester before she would have graduated, and has said this decision was due to her success as an actress.