Oli was bullied at school.
But he turned his life around and now, aged 20, he's a successful businessman and advises schools on how to improve life for the pupils.
He's involved with a new scheme to get anti-bullying experts working in schools.
Tell us about being bullied
It happened over four or five years. There was a lot of name calling. It was very bad. It just came to a head one day when I was 15 and I made a decision. I changed schools. I moved back a year so I could make a new start.
Do you think people take the issue seriously enough?
I think they do now. I think people realise it is a universal problem. Whenever you put people in a competitive environment, there will be stress and people will react to it.
We're bad at dealing with emotional awareness. People will lash out instead of talking about it.
How will the new scheme help?
We have got a lot of services for people who are being bullied, but people don't always know about them. This will be a one-stop shop enabling people to get the help they need.
What's your advice to people who are being bullied?
The easiest thing to do is not talk about it and to think it's not a problem. But if it's something that makes you feel bad, you need to talk about it.
Sometimes your friends will be messing about and they won't realise they've upset you. If you feel confident about talking to the person who has upset you, approach them. But if it's someone you don't like, tell someone you trust instead.
You can always turn the situation around. It's a big step to stand up and fight against it, but you'll feel so much better when you do.
How do you look back at the time when you were bullied?
I'm in two minds about it. I wouldn't be here now if I hadn't had the experience. It's made my life what it is and allowed me to talk to people on a big stage. But at the same time, it was a horrible experience.
How do you feel about the bullies now?
I'm not really bothered. I don't have any hard feelings towards them.