In Wales 7,000 young people every year need help because they're facing becoming homeless.
But charity Llamau believes thousands more are experiencing what's known as 'hidden homelessness'.
18-year-old Megan Harris became homeless when she was 15, after her mum couldn't cope.
She spent weeks sleeping on floors and sofas with friends and family, "it just got too much - especially because at the time I was doing my exams in school. It was a horrible time."
For the last two and a half years Megan's been living with Lynne as part of a scheme run by Llamau.
Lynne provides a room in her home for Megan, who says it's turned her life around, "I'm actually getting on with life now. Moving here is the best thing that ever happened to me. I'm happier, more outgoing, less depressed. I'm not the same person I was when I moved in."
Watch Megan's story here:
It's an option available for people under the age of 24 who find themselves homeless. Lynne believes in the importance of a family environment, "I think stability is the number one thing that they need. They need to know there is a better way, they've never had stability. A lot of these youngsters have never had any kindness shown them, or any help. It's like a family home - I just try to cook and clean like a mum would."