Complex sentence: However, after a pastor threatened Haze's mother, her family left the church and moved to Brooklyn, New York when she was 16 years old, then she soon began delving into the world of secular music.
Split into simpler sentences: However, after a pastor threatened Haze's mother, her family left the church and moved to Brooklyn, New York when she was 16 years old. After her family had moved to Brooklyn, Haze soon began delving into the world of secular music.