Complex sentence: Sweetnam was also a full-time Regional Arts Program student at Mayfield Secondary School in Brampton, Ontario, majoring in drama, but within months of arriving at the school in Grade 9, she dropped out to pursue her career.
Split into simpler sentences: Sweetnam was also a full-time Regional Arts Program student at Mayfield Secondary School in Brampton, Ontario, majoring in drama. Within months of arriving at the school in Grade 9, she dropped out to pursue her career.