Started smoking marijuana when I was 16: Actress Amanda Bynes 
Actress Amanda Bynes, while talking about her experience with drug abuse, revealed that she started smoked marijuana when she was 16-years-old. "Everyone thought I was the 'good girl'," Amanda said. The 32-year-old actress further said she progressed to harder drugs like "molly and ecstasy", adding that it became a "dark, sad" world for her after she turned to drugs.  