When I was at my lowest point - I was a total mess, in complete despair with a £120-a day heroin and crack habit which meant that I was in and out of prison - I would never have believed it if someone had told me what I would be doing today: using my experiences on drugs to turn around the lives of young kids. Today, my charity, Energy and Vision, has a turnover of £250,000 and a full-time staff of eight. We lecture at schools such as Mill Hill in north London and Reeds School in Cobham, public schools and comprehensives in inner cities all over Britain, as well as all over Europe.