Complex sentence: Chambers went to school at St. Mary's (now Hill House School, Doncaster) before training at the Webber Douglas Academy in the 1980s, where she was a classmate of actor Ross Kemp.
Split into simpler sentences: Chambers went to school at St. Mary's (now Hill House School, Doncaster). She then trained at the Webber Douglas Academy in the 1980s, where she was a classmate of actor Ross Kemp.