"That was one of the very good things that happened this year."
When she was taken to hospital part of her skull was removed to release pressure on her brain.
Wood went through a recovery process to learn to walk, talk, read and eat again.
"I learnt it all very quickly, thank goodness... I got that stuff back, which is just a real relief for me."
She said she has spoken to her two sons, Alexander and Matthew, about what she was like in the immediate aftermath of the accident.
"It was an absolutely horrible thing for them for several weeks, when I couldn't speak.
"They were fantastic... I know for that first three weeks it was really harsh on them."
Wood said she had never felt bad about the accident and said it was "just one of those things to work through".
"I was determined to talk again, to read again and do what I needed to do to get my life back."
Her head was shave on the left side for the operation and has now grown back.
"That's my last big thing I needed to do," she said.
She said the support from her sons, her ex-husband and friends was "incredible" and strangers had sent cards and letters, which she read a while after the accident.
"Everywhere I have been people have been absolutely lovely to me."