what the hell

someone please tell me what freakin stage my 7 year old girl child is going thru? i'm ready to take up spanking. i'm calling it her 'death wish' stage cause clearly the little girl child has a death wish to continue on her current path of destruction. her chosen path being back talking, rudeness, being mean...etc....i'm sure the picture is becoming clear.
for the last couple of days or so her attitude is atrocious. the awful attitude exuding from her is enough to make me want to knock her into next week.
this morning...she is told to get up, get dressed and get ready for school. after being told a couple more times and being threatened with a cold wet washcloth she finally gets up. and this is what she yells as she comes stomping down the hall, "i'm up ...are you happy now??" and says it with such attitude. not a good attitude either...
part of me thinks, 'where did we go wrong?' but i know we havent.
someone pleazzzzzzzzzzz tell me its a phase she will outgrow...soon. becuase if this is a prelude to her teenage years...god help us all. because if this last much longer i'm going to have to up my meds.