Complex sentence: Tang Pik Wan was a Cantonese opera actress since she was 13, when she joined a Cantonese opera, she was a disciple of a few Cantonese opera masters and soon became the head actress for her troupe when she was 15.
Split into simpler sentences: Tang Pik Wan was a Cantonese opera actress since she was 13, when she joined a Cantonese opera. She was a disciple of a few Cantonese opera masters and soon became the head actress for her troupe when she was 15.