Carrie Underwood - Blown Away Lyrics Meaning

I think like most of you, that the song is about a little girl who locks herself during a tornado and leaves his father who has passed out due to an excess of alcohol, but i feel there is also a deeper feeling. In my opinion, the tornado represents growing up, leaving your past behind. "Til theres nothing else standing", "nothing left of yesterday", "all blown away..". The girl had a traumatic and difficult childhood, and she needs to overcome it. "Theres not enough wind in Oklahoma, to rip the nails out of the past", meaning that it is difficult for her to overcome her trauma just like that and get over the problems she had when she was little with her dad. The expression "rip the nails" is used because it is hard to forget her past, to rip the nails of her past from her heart. Also, the "storm clouds" and "lightings" may represent the moments when her father got agressive with her. So what do you think? Do you agree with me?