Christina says she has lived on the streets since she was eight years old.
She allowed ITV Cymru Wales to film with her as part of our week-long special coverage on homelessness.
Christina found herself on the streets after running away from home as a child. She now lives in a tent in Cardiff city centre.
She has a little boy and wants to be reunited with him, but must first overcome a drug addiction.
I've got to try and fight my addiction before I can fight for my little boy. I've got to try and find a place and the only way to do it is to be on the streets at the moment.
Christina says she often experiences abuse from passers-by.
When people experience this for one night, they can come and preach to me - but until they do I'm not interested in what they have to say.
Christina says all she can think about before she goes to sleep is where her next bag of heroin is coming from.
She told us she stopped trying to think about her little boy a long time ago, because its too upsetting to think about in her current situation.
Watch Christina's story in full below:
Read some of the other stories we've featured here:
See more of ITV Cymru Wales' special coverage on homelessness here.