Complex sentence: Mackenzie went on to study acting at the Neighborhood Playhouse in New York City, and was soon discovered by Drake Doremus for her acting debut in the feature film "Breathe In".
Split into simpler sentences: Mackenzie went on to study acting at the Neighborhood Playhouse in New York City. Shorty after, she was discovered by Drake Doremus for her acting debut in the feature film "Breathe In".