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13 July 2015 Last updated at 00:06 BST
Danielle was taken into care in 1998, aged 11.
She told BBC Inside Out West Midlands about her experiences and said sometimes she felt it was safer to run away.
Danielle said there should be more emotional support for children in care and placements needed to be "sorted out", as they contributed to children's disruptive behaviour.
A young woman who was moved 39 times in the five years she spent in the care of Birmingham social services as a girl says vulnerable children need more support.