When I was growing up in Zimbabwe, I knew someone who had HIV.
I could see she was very sick, and and it upset me as she used to look after me as a child.
So with Fixers, I have designed a condom box that is designed to educate young people about HIV.
It can be contracted in a number of ways - and sexual transmission is just one of them.
I'm planning on handing out the boxes at my university so that I can reach young people with my message.
Me and my friends want young people to know that calories aren't the enemy!
Tilly and Bella
Fixers is a project of the Public Service Broadcasting Trust, funded by the National Lottery through the Big Lottery Fund, and featured on ITV.