Complex sentence: DJ Murci released her first single "E A S Y" New Years Day of 2017, she was 15 though she hadn't decided that she wanted to do music for a living when until she turned 16.
Split into simpler sentences: DJ Murci released her first single "E A S Y" New Years Day of 2017. Though she hadn't decided that she wanted to do music for a living when until she turned 16.