Nairobi, March 16 -- My name is Kimberly Chelimo. I am a recovering heroin addict. The first drug I ever used was Marijuana (weed).

I was 14 then, on a holiday break at Mombasa with my cousins. One of my elder ones was using it, and I was drawn to it.

Then, a lot of things were going on in my life, from exams to social and family pressure, but I didn't have a coping mechanism. My parents were also busy chasing a good life because they wanted us to have the best.

The weed, even though I was smoking on and off, gave me a feeling of escape. It made me feel that I was somewhere else and was somebody else. It made me feel pretty and good. I started becoming addicted to that feeling.

I was in boarding school then, but I found ways to sneak ...