And the teenager, who is now 17, has publicly thanked a national charity that helped her overcome terrible injuries sustained when she was struck by a car on a pedestrian crossing on the A605 Whittlesey Road, on her way home from school in June 2006.

She said: "The amazing people at The Children's Trust helped me a great deal and they help many children in a far worse condition and situation than I was."

As a result of the impact, she was left with head injuries and slipped into a coma for six days, and although doctors told her parents to fear the worst, she pulled through.

The days and weeks following the crash saw Becki, who was just 14 at the time, begin her remarkable recovery.

Part of that was a spell in The Children's Trust centre in Tadworth, Surrey, which works with children who have multiple disabilities, and offers services to children from across the UK.

Becki, from Park Farm, Stanground, Peterborough, said her stay at the centre was pivotal to her progress.

She said: "I was so far away from home and I was confused, nothing was really making sense.

"A carer sat and talked to me when I was crying and wanted to go home.

"They understood my problems, they really did help me."

She said seeing children in wheelchairs and unable to walk or talk made her feel grateful for what she had.

Becki has recently started voluntary work as a teaching assistant at Phoenix special school in Orton Goldhay, where she is inspiring girls her own age who have learning and physical disabilities.

She is also planning to start a part-time course at Peterborough Regional College building up to a beauty therapy qualification.

Although she will never forget her ordeal, she said she was feeling more optimistic.

She said: "I have mild cognitive and memory problems and it takes me longer to learn new things.

"Three years on, I still feel upset about it. It's not all just going to go away.

"But I'm trying my best."

A spokesman for The Children's Trust said: "Becki is a determined and inspirational young woman.

"She recently returned to The Children's Trust to speak to a group of young people staying here for rehabilitation about living with an acquired brain injury and she will be giving a speech about her experiences to a Royal College of Nursing conference in September."